Cita APA

Penning de Vries, F., Teng, P., & Metselaar, K. (1993). Systems approaches for agricultural development. Netherland: Kluwer Academic Publishers.

Citación estilo Chicago

Penning de Vries, Frits, Paul Teng, and Klaas Metselaar. Systems Approaches for Agricultural Development. Netherland: Kluwer Academic Publishers, 1993.

Cita MLA

Penning de Vries, Frits, Paul Teng, and Klaas Metselaar. Systems Approaches for Agricultural Development. Netherland: Kluwer Academic Publishers, 1993.