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Wharton Assembly Addresses, 1938
B. Sheebohm Rowntree, C. A. Dykstra, George W. Shepard, Harold Joseph Laski, William Allen White · University of Pennsylvania Press Anniversary Collection
84 sayfa · 1938
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Potato production in the northeastern and north central states
G. V. C. Houghland, Robert V. Akeley, Theodore P. Dykstra, W. A. Shands · U.S. Department of Agriculture
62 sayfa · 1954
Potatoes