Harrod, R. F. (1972). Economic essays (2nd ed.). Macmillan.
Chicagoスタイル(17版)引用形式Harrod, Roy Forbes. Economic Essays. 2nd ed. [London]: Macmillan, 1972.
MLA(9版)引用形式Harrod, Roy Forbes. Economic Essays. 2nd ed. Macmillan, 1972.
警告: この引用は必ずしも正確ではありません.