Heady, E. O. a. J. (1954). Farm management economics. Prentice-Hall.
Chicagoスタイル(17版)引用形式Heady, Earl O. and Jensen. Farm Management Economics. New York: Prentice-Hall, 1954.
MLA(9版)引用形式Heady, Earl O. and Jensen. Farm Management Economics. Prentice-Hall, 1954.
警告: この引用は必ずしも正確ではありません.