Yazar
Stuart Ward Frost
19 cilt bulundu.
Arnold Ernest Lundie, Arthur John Heinicke, Arthur Maxwell Brunson, Donald Reddick, Harrison August Ruehe, Howard Campbell Jackson, Hugh Cecil Huckett, Paul Work, Rollins Adams Emerson, Stuart Ward Frost · Yayınevi bilinmiyor
946 sayfa · 1923
Agrobacterium tumefaciens
James George Needham, Stuart Ward Frost, Beatrice Hughes Tothill · Yayınevi bilinmiyor
376 sayfa · 1928
Beneficial insects
Francena Lounsbery Nolan, George E. Brandow, Glen Otto Bressler, Leonard William Aurand, Norman Kurtz Hoover, Oivind Nissen, Pennsylvania State College. Agricultural Experiment Station, Percival Thomas Zeigler, Stuart Ward Frost, Walter Spurgeon Beach · Yayınevi bilinmiyor
892 sayfa · 1950
Agricultural experiment stations
Charles Franklin Noll, Edgar George Rex, Ernest Leland Nixon, P. T. Kistler, Pennsylvania State College. Agricultural Experiment Station, Samuel Irvin Bechdel, Stuart Ward Frost, Walter Spurgeon Beach · Yayınevi bilinmiyor
674 sayfa · 1925
Agricultural experiment stations
Cloy Bernard Knodt, George H. Watrous, Hans Arthur Meyer, Homer Bastian Metzger, James Alton Cox, Kenneth Hayes Myers, Otis Dudley Duncan, Stuart Ward Frost, William Clark Bramble, William L. Barr · Yayınevi bilinmiyor
704 sayfa · 1951
Cherry
Stuart Ward Frost, Pennsylvania State University. Agricultural Experiment Station · Yayınevi bilinmiyor
32 sayfa
Insect traps
Stuart Ward Frost, Pennsylvania State University. Agricultural Experiment Station · Yayınevi bilinmiyor
24 sayfa · 1928
Eulia