Cita APA

Singh, R. P., Parr, J. F., & Stewart, B. A. 1. (1990). Dryland agriculture: Strategies for sustainability. Springer-Verlag.

Citación estilo Chicago

Singh, R. P., J. F. Parr, and B. A. 1932- Stewart. Dryland Agriculture: Strategies for Sustainability. New York ; Berlin: Springer-Verlag, 1990.

Cita MLA

Singh, R. P., J. F. Parr, and B. A. 1932- Stewart. Dryland Agriculture: Strategies for Sustainability. New York ; Berlin: Springer-Verlag, 1990.