Cita APA (7a ed.)

Papi, U., & Nunn, C. (1969). Economic Problems of Agriculture in Industrial Societies. Macmillan.

Cita Chicago Style (17a ed.)

Papi, Ugo, y Charles Nunn. Economic Problems of Agriculture in Industrial Societies. London: Macmillan, 1969.

Cita MLA (9a ed.)

Papi, Ugo, y Charles Nunn. Economic Problems of Agriculture in Industrial Societies. Macmillan, 1969.