Harold Christy Schwalen

UIUC:30112019414819

Adobe houses

Allen Fisher Kinnison / Andrew Alexander Nichol / Ernest Brooke Stanley / Harold Christy Schwalen / James Greenlief Brown / K. P. Pickrell / Ralph Sams Hawkins / Stanley Penryn Clark / Malcolm Frederic Wharton / Milton M. Evans

UIUC:30112043919387

Agriculture

Helen Margarete Goetz / John R. Williams / Robert Lee Voigt / Robert S. Firch / W. G. Matlock / Walter W. Pawson / Alida S. Hotchkiss / Ellsworth A. Baker / Richard J. Shaw / Harold Christy Schwalen

UIUC:30112019412854

Agricultural college graduates

Harold Christy Schwalen / University of Arizona. Agricultural Experiment Station / Kenneth R. Frost / Walter W. Hinz

OCLC:631857178

Sprinkler irrigation

Harold Christy Schwalen / University of Arizona. Agricultural Experiment Station

UCR:31210024994970

Boring

Harold Christy Schwalen / Richard J. Shaw / University of Arizona. Agricultural Experiment Station

OCLC:20708163

Groundwater

David A. Woolhiser / Harold Christy Schwalen

ERDC:35925002141148

Rain and rainfall

Harold Christy Schwalen / Robert Eugene Briggs / Robert Lee Voigt / University of Arizona. Agricultural Experiment Station / Walter Sargeant Phillips / Warner Douglass Fisher / David C. Allison / Richard J. Shaw / Elias H. Pressley

UIUC:30112019412839

Agriculture

Harold Christy Schwalen / R. J. Shaw

1258761386 / 9781258761387

Harold Christy Schwalen / Richard Joshua Shaw

UCAL:B2675134

Groundwater

Harold Christy Schwalen

UIUC:30112019415170

Agriculture

Harold Christy Schwalen / University of Arizona. Agricultural Experiment Station

OCLC:20708184

San Pedro River (Mexico and Ariz.)

Mortimer Reed Lewis / Harold Christy Schwalen / University of Arizona. College of Agriculture. Agricultural Engineering Department

OCLC:25706090

Irrigation

University of Arizona. Agricultural Experiment Station / H.C. Schwalen

OCLC:631857542

Harold Christy Schwalen

OCLC:27002198

Groundwater

Harold Christy Schwalen

OCLC:20707289

Artesian basins

Harold Christy Schwalen

UIUC:30112019414819

Adobe houses

Harold Christy Schwalen / University of Arizona. Agricultural Experiment Station

UCR:31210024994970

Boring

Harold Christy Schwalen / Robert Eugene Briggs / Robert Lee Voigt / University of Arizona. Agricultural Experiment Station / Walter Sargeant Phillips / Warner Douglass Fisher / David C. Allison / Richard J. Shaw / Elias H. Pressley

UIUC:30112019412839

Agriculture

Clifford N. Catlin / D. W. Albert / Ernest Brooke Stanley / Franklin Jacob Crider / Harold Christy Schwalen / Richard Naaman Davis / Walter Stanley Cunningham

UIUC:30112043919411

Agriculture

W. Gerald Matlock / Harold Christy Schwalen / Richard Joy Shaw

UOM:39015049094199

Groundwater

Helen Margarete Goetz / John R. Williams / Robert Lee Voigt / Robert S. Firch / W. G. Matlock / Walter W. Pawson / Alida S. Hotchkiss / Ellsworth A. Baker / Richard J. Shaw / Harold Christy Schwalen

UIUC:30112019412854

Agricultural college graduates

Harold Christy Schwalen

UIUC:30112019415170

Agriculture

David A. Woolhiser / Harold Christy Schwalen

ERDC:35925002141148

Rain and rainfall

Allan Douglass Telford / H. Fred Arle / Harold Christy Schwalen / Raymond E. Seltzer / Robert Seldon McGlothlin / University of Arizona. Agricultural Experiment Station / Richard Joshua Shaw

UIUC:30112043919320

Agricultural experiment stations

Harold Christy Schwalen / Richard Joshua Shaw

UCAL:B2675134

Groundwater

Alton Harold Finch / G.E.P. Smith / Harold Christy Schwalen / Howard Vernon Smith / James Greenlief Brown / Theophil Frederic Buehrer / Walker Edward Bryan / William Thomas McGeorge / University of Arizona. Agricultural Experiment Station / Clifton W. Van Horn / J. A. Williams / Robert Alva Greene

UIUC:30112043919296

Adobe houses

Allen Fisher Kinnison / Andrew Alexander Nichol / Ernest Brooke Stanley / Harold Christy Schwalen / James Greenlief Brown / K. P. Pickrell / Ralph Sams Hawkins / Stanley Penryn Clark / Malcolm Frederic Wharton / Milton M. Evans

UIUC:30112043919387

Agriculture