Phytopathology. v.31, Jan-June, 1941
Humphrey, H.B., ed.
Phytopathology. v.31, Jan-June, 1941 edited by H.B. Humphrey - Minnesota American Phylopathological Society 1941 - v.31, 573 p.; 24cm.
0031949X
Phytopathology. v.31, Jan-June, 1941 edited by H.B. Humphrey - Minnesota American Phylopathological Society 1941 - v.31, 573 p.; 24cm.
0031949X
