共 40 条
[1]
Anderson R.S., 1991, RICE SCI DEV POLITIC
[2]
BELL RM, 1979, IDS B, V10, P44
[3]
BERINGER JE, 1990, AGR BIOTECHNOLOGY OP
[4]
Biggs S. D., 1991, AGR RES RURAL POOR R
[8]
BIGGS SD, 1989, ON FARM CLIENT ORIEN
[9]
BOONKERD N, 1990, UNPUB INOCULANT QUAL
[10]
Bunders J. F. G., 1990, BIOTECHNOLOGY SMALL