Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Horton, Douglas E. Potatoes: Production, Marketing and Programs for Developing Countries. Colorado: Westview, 1987.

Cita MLA (8a ed.)

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