共 4 条
[1]
COLLWELL ML, 1931, 301S2 REP EXP
[2]
HILDRETH AC, 1943, UNPUB YIELDS 2 YEAR
[3]
KELLEY OJ, 1946, J AM SOC AGRON, V38, P589
[4]
TINGEY DC, 1943, UNPUB SEEDING GUAYUL