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Soil Survey
作者
Francis Ogden Youngs / Oscar FitzAllen Bartholomew / David Stout Jennings / LeMoyne Wilson / Ira Deloss Zobell / M. H. Wallace / Joel Eugene Fletcher / William Baugh
出版1942
ISBN
ERDC:35925002002886
主題
Mohave County (Ariz.)
Soil-management and Crop Production Studies
作者
Ira Deloss Zobell
出版1936
ISBN
UIUC:30112019885380
主題
Soil conservation
Progress Report, Carbon County Experimental Farm, ...
作者
Ira Deloss Zobell / George Stewart
出版1931
ISBN
UIUC:30112019884888
主題
Agricultural experiment stations
Soil-management and Crop Production Studies
作者
Ira Deloss Zobell
出版1936
ISBN
UIUC:30112019885380
主題
Soil conservation
Progress Report, Carbon County Experimental Farm, ...
作者
Ira Deloss Zobell / George Stewart
出版1931
ISBN
UIUC:30112019884888
主題
Agricultural experiment stations
Muck Soil Investigations
作者
Don Warren Pittman / Edith Hayball / George D. Clyde / George Quayle Bateman / George Stewart / Ira Deloss Zobell / James H. Eagar / John Wilford Carlson / LeMoyne Wilson / Reuben Lorenzo Hill
出版1931
ISBN
UIUC:30112019883278
主題
Agricultural experiment stations