Cita APA (7th ed.)

Clark, C., & Haswell, M. R. (1966). The economics of subsistence agriculture (2d ed.). Macmillan.

Cita Chicago (17th ed.)

Clark, Colin, i Margaret Rosary Haswell. The Economics of Subsistence Agriculture. 2d ed. London: Macmillan, 1966.

Cita MLA (9th ed.)

Clark, Colin, i Margaret Rosary Haswell. The Economics of Subsistence Agriculture. 2d ed. Macmillan, 1966.