Yazar
Harry R Allen
18 cilt bulundu.
Harry Fagan Yancey, Joe Daniels, E. R. McMillan, Max Richard Geer · Yayınevi bilinmiyor
974 sayfa · 1943
Coal
Garrett Davis Buckner, Henry Ernest Curtis, Howard Herman Jewett, John B. Hutson, Joseph Holmes Martin, Oscar Bernard Jesness, Zachary Lee Galloway, William Goebel Finn · Yayınevi bilinmiyor
540 sayfa · 1928
Agricultural systems
Edwin Stanton Good, George Roberts, Henry Ernest Curtis, Howard Herman Jewett, Perry Elmer Karraker, Ronald Bradley Craig, William Donney Valleau, William Wallace Dimock · Yayınevi bilinmiyor
766 sayfa · 1931
Alfalfas
Dana George Card, E. C. Johnson, Henry Ernest Curtis, Saxe Dabney Averitt, William Donney Valleau, William Wallace Dimock · Yayınevi bilinmiyor
594 sayfa · 1927
Deficiency diseases in plants
Henry Ernest Curtis, Kentucky Agricultural Experiment Station · Yayınevi bilinmiyor
97 sayfa · 1927
Fertilizers
Henry Ernest Curtis, Kentucky Agricultural Experiment Station, Harry R. Allen · Yayınevi bilinmiyor
119 sayfa · 1919
Fertilizers