Cita APA (7th ed.)

Horton, D. E. (1987). Potatoes: Production, marketing, and programs for developing countries. Westview Press ; IT Publications.

Cita Chicago (17th ed.)

Horton, Douglas E. Potatoes: Production, Marketing, and Programs for Developing Countries. Boulder : London: Westview Press ; IT Publications, 1987.

Cita MLA (8th ed.)

Horton, Douglas E. Potatoes: Production, Marketing, and Programs for Developing Countries. Westview Press ; IT Publications, 1987.