Cita APA (7a ed.)

Brengle, K. G. (1982). Principles and practices of dryland farming. Colorado Associated University Press.

Cita Chicago Style (17a ed.)

Brengle, K. G. Principles and Practices of Dryland Farming. Colorado: Colorado Associated University Press, 1982.

Cita MLA (8a ed.)

Brengle, K. G. Principles and Practices of Dryland Farming. Colorado Associated University Press, 1982.