共 5 条
[2]
CALDWELL RM, 1938, IND AGRIC EXP STAT A, P42
[3]
MCMILLAN J. R. A., 1936, Journal of the Council for Scientific and Industrial Research, Australia, V9, P283
[4]
PAINTER RH, 1940, KANS AGR EXPT STA B, V49