共 16 条
[2]
BORDEN AD, 1946, CAL EXPT STA CIRC, V365, P46
[3]
CHAPMAN AJ, 1948, J ECON ENT, V41, P665
[4]
FIFE LC, 1945, J ECON ENT, V38, P608
[5]
HIBBS ET, 1946, 1042 TEX AGR EXPT ST
[7]
LANGE W. H., 1946, Circular. California Agricultural Experiment Station, V365, P39
[10]
Sleesman J. P., 1946, OHIO AGRIC EXPT STA BIMO BULL, V31, P39