Yazar
Jay Porter
19 cilt bulundu.
Cilt sonuçları
The Agricultural Research Center of the United States Department of Agriculture
Bertha Francis Olsen, Harry Hutchinson Stage, Richard Jay Foote, Karl August Fox, Willard Wilson Yates, Claude M. Gjullin · Yayınevi bilinmiyor
876 sayfa · 1956
Agricultural extension work
Inspection and Analysis of Commercial Fertilizers
Joe Dew Kinard, Milo J. Peterson, Bobby Owen Williams, Bruce D. Cloaninger, E. Jay Holcomb, Elmer John Lease, George Hubert Aull, Jack Harris Mitchell, Martin Taylor Matthews, Wallace Thomas Ferrier · Yayınevi bilinmiyor
802 sayfa · 1940
Agricultural administration