APA (7th ed.) Citation

CLARK, C. (1967). The economics of subsistence agriculture. Macmillan.

Chicago Style (17th ed.) Citation

CLARK, Colin. The Economics of Subsistence Agriculture. London: Macmillan, 1967.

MLA (9th ed.) Citation

CLARK, Colin. The Economics of Subsistence Agriculture. Macmillan, 1967.