Crum Marshall Ritter

UIUC:30112019831889

Agriculture

Josie Moore Crum

UCR:31210006821183

Crum Marshall Ritter / Frank Bancroft Thomas

OCLC:24931851

Apples

Crum Marshall Ritter

UIUC:30112019831889

Agriculture

Crum Marshall Ritter / Pennsylvania State University. Agricultural Experiment Station

OCLC:23095487

Apples

Warren Cryder Stiles

OCLC:23096199

Apples

Crum Marshall Ritter

OCLC:54014939

Apples

Charles L. Fergus / Clarence Earl Trotter / Crum Marshall Ritter / Edwin Lavern Cooper / Francena Lounsbery Nolan / Harold Kenneth Fleming / James Alton Cox / Pennsylvania State University. Agricultural Experiment Station / Walter Frederick Westerfeld

UIUC:30112019825089

Agricultural experiment stations

Bernard Leonard Pollack / D. Woods Thomas / Francena Lounsbery Nolan / P. H. Margolf / R. J. Snyder / Ralph L. Baker / Walter Spurgeon Beach / William Sloan Clarke

UIUC:30112019825063

Apples

Crum Marshall Ritter

OCLC:41792408

Calcium

Walter Ivan Thomas / Crum Marshall Ritter

OCLC:24947227

Apples

Crum Marshall Ritter

OCLC:24947313

Elders (Plants)

Crum Marshall Ritter / Henry Barr Engle / Horace Bruce Bylund / J. L. Mecartney / Nuri N. Mohsenin / Pennsylvania State University. Agricultural Experiment Station / Robert F. Hutton

OCLC:18545700

Agricultural experiment stations

William Sloan Clarke / Pennsylvania State University. Agricultural Experiment Station

OCLC:23075953

Apples

Charles L. Fergus / Clarence Earl Trotter / Crum Marshall Ritter / Harold Kenneth Fleming / Karl Gertel / Ruth R. Honey / Sidney Ishee / Walter Frederick Westerfeld

OCLC:14048540

Apples