共 24 条
[1]
Ahmadi-Esfahani F. Z., 1994, Agribusiness (New York), V10, P529, DOI [10.1002/1520-6297(199411/12)10:6<529::AID-AGR2720100610>3.0.CO
[2]
2-3, 10.1002/1520-6297(199411/12)10:6<
[3]
529::AID-AGR2720100610>
[4]
3.0.CO
[5]
2-3]
[6]
*AWB, 1984, SHIPP REC
[7]
*AWB, 1993, ANN REP
[8]
ESPINOSA JA, 1991, WESTERN J AGR ECON, V16, P72
[9]
Ethridge D. E., 1982, WESTERN J AGR ECON, V7, P293
[10]
*IWC, 1992, WORLD GRAIN STAT