Cita APA (7a ed.)

Clark, C., & Haswell, M. (1967). The economics of subsistence agriculture (3a ed.). Macmilllan.

Cita Chicago Style (17a ed.)

Clark, Colin, y Margaret Haswell. The Economics of Subsistence Agriculture. 3a ed. London: Macmilllan, 1967.

Cita MLA (9a ed.)

Clark, Colin, y Margaret Haswell. The Economics of Subsistence Agriculture. 3a ed. Macmilllan, 1967.