共 14 条
[11]
SMOCK RM, 1950, CORNELL AGR EXP STA, V297
[12]
SMOCK RM, 1946, P AM SOC HORT SCI, V52, P176
[13]
TROUT SA, 1940, COUN SCI IND RES AUS, V135
[14]
WALLACE T., 1950, Journal of the Royal Horticultural Society, V75, P91