Lewis Polster Ditman

Lewis Polster Ditman, Ernest Neal Cory · Yayınevi bilinmiyor

28 sayfa · 1936

Corn

Donald Busby Dunlap, Edward Arthur Stahly, Floyd Perry Harrison, John Dominic Bowling, Ronald Allan Davis, University of Maryland. Agricultural Experiment Station, Walter T. McDonough, Arthur Howard Thompson, Hugh Gilbert Gauch, Lewis Polster Ditman · Yayınevi bilinmiyor

1044 sayfa · 1959

Agriculture

Floyd Perry Harrison, Lewis Polster Ditman · Yayınevi bilinmiyor

22 sayfa · 1960

Agriculture

Ernest Neal Cory, George W. Lloyd, Lewis Polster Ditman · Yayınevi bilinmiyor

32 sayfa · 1952

Agriculture

Ernest Neal Cory, Harold David Smith, Harold Sloan McConnell, John Dominic Bowling, Joseph Neal Sasser, University of Maryland. Agricultural Experiment Station, Willard Wynn Green, William Paul Walker, D. E. Brown, George W. Lloyd, James Edward McMurtrey, · Yayınevi bilinmiyor

Charles Walter England, Devoe Meade, Harold Moon DeVolt, Lewis Polster Ditman, Ralph Russell, Wells E. Hunt, William Edwin Whitehouse, William Eugene Hauver, Albert Lee Schrader, Arthur Bryan Hamilton, Arthur R. Buddington, Clyde R. Davis, · Yayınevi bilinmiyor

Lewis Polster Ditman, Ernest Neal Cory, John P. Secrest · Yayınevi bilinmiyor

32 sayfa · 1941

Helicoverpa armigera

Charles Walter England, Everett C. Weitzell, George P. Lachar, Lewis Polster Ditman, Paul R. Poffenberger, Roger F. Burdette, Russel Grove Rothgeb, Wells E. Hunt, B. E. Carmichael, G. D. D'Ambrogi, S. B. Shaw, Samuel Henry DeVault, William Beck Kemp, · Yayınevi bilinmiyor

Donald Busby Dunlap, Edward Arthur Stahly, Floyd Perry Harrison, Henry Barr Engle, John Dominic Bowling, Ronald Allan Davis, University of Maryland. Agricultural Experiment Station, Walter T. McDonough, Arthur Howard Thompson, Hugh Gilbert Gauch, Lewis Polster Ditman · Yayınevi bilinmiyor

916 sayfa · 1959

Agriculture

Ernest Neal Cory, Harold Sloan McConnell, Hugh Gilbert Gauch, John Dominic Bowling, Joseph Neal Sasser, University of Maryland. Agricultural Experiment Station, Willard Wynn Green, William Paul Walker, D. E. Brown, George W. Lloyd, Willie Mack Dugger, , · Yayınevi bilinmiyor

Lewis Polster Ditman, Arthur R. Buddington, Ernest Neal Cory · Yayınevi bilinmiyor

36 sayfa · 1936

Drosophila

Lewis Polster Ditman, Ernest Neal Cory · Yayınevi bilinmiyor

32 sayfa · 1933

Corn

John R. Young · Yayınevi bilinmiyor

56 sayfa · 1963

Agricultural chemicals

University of Maryland. Agricultural Experiment Station, Alva Morgan Golden, Arthur Howard Thompson, George Louis Steffens, Lewis Polster Ditman, Willard Wynn Green, Floyd Perry Harrison, Herman S. Todd · Yayınevi bilinmiyor

962 sayfa · 1957

Agriculture

Claude G. McKee, Elroy Ralph Krestensen, John Wright Wysong, Maryland Agricultural Experiment Station, Ralph Albert Bram, Roderick MacLeod Coan, William George Phillips, William J. Bramlage · Yayınevi bilinmiyor

784 sayfa · 1962

Agriculture

Lewis Polster Ditman · Yayınevi bilinmiyor

36 sayfa · 1938

Helicoverpa armigera