共 12 条
[1]
BENEKE RR, 1955, MANAGING FARM BUSINE, P217
[2]
CASE HCM, 1960, PRINCIPLES FARM MANA, P149
[3]
ELLIOTT FF, 1927, U ILLINOIS AGR EXP S, V293
[4]
EZEKIEL M, 1941, METHODS CORRELATION, P498
[5]
HEADY EO, 1954, FARM MANAGEMENT EC, P283
[6]
MOSHER ML, 1952, U ILLINOIS AGR EXP S, V558
[7]
MUELLER AG, 1961, FEEDER CATTLE GUIDE
[8]
SWANSON ER, 1959, J FARM ECON, V46, P640
[9]
TINTNER, 1952, ECONOMETRICS, P54
[10]
WRIGHT K. T., 1962, Quarterly Bulletin. Michigan State University Agricultural Experiment Station, V44, P590