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*AGR MARK SERV, 1959, FEED SIT, P21
[2]
ARMORE SJ, 1953, TECH B USDA, V1068
[3]
BASMANN RL, 1957, ECONOMETRICA, V25
[4]
CHRIST CF, 1960, ECONOMETRICA, V28, P837
[5]
FRIEDMAN J, 1957, AGR HDB USDA, V94, P77
[6]
HOOD WC, COWLES COMMISSION MO, V14, P119
[7]
JORDAN GL, 1951, AGR EXPT STA B, V546
[8]
KING GA, 1958, TECH B USDA, V1183
[9]
MARSHALL A, MATH NOTE, V18, P702
[10]
MARSHALL A, 1956, PRINCIPLES EC, P321