Cita APA (7th ed.)

Phillips, R., & Unger, S. G. (1973). Building viable food chains in the developing countries. A. I. D.

Cita Chicago (17th ed.)

Phillips, Richard, i Samuel G. Unger. Building Viable Food Chains in the Developing Countries. [Washington, D.C.]: A. I. D, 1973.

Cita MLA (9th ed.)

Phillips, Richard, i Samuel G. Unger. Building Viable Food Chains in the Developing Countries. A. I. D, 1973.