共 16 条
[1]
ALLEN RR, 1975, T ASAE, V18, P1109, DOI 10.13031/2013.36749
[2]
BUCHELE WF, 1979, MC79303 AM SOC AGR E
[3]
ERBACH DC, 1978, 781014 AM SOC AGR EN
[4]
ERBACH DC, 1980, IOWA AGR HOME EC EXP, V14
[5]
ERBACH DC, 1976, SPECIAL PUBLICATION, V27, P337
[6]
Gard L. E., 1973, Outlook on Agriculture, V7, P149
[7]
GARMAN CF, 1982, SUM AM SOC AGR ENG M
[8]
HEINEMAN.WH, 1973, T ASAE, V16, P656
[9]
JAFARI JV, 1972, T ASAE, V15, P569
[10]
KLOCKE NL, 1979, JOINT M AM SOC AGR E