Citazione Stile APA (7a Edizione)

Castillon, D. A. (1992). Conservation of natural resources: A resource management approach. Wm. C. Brown Publishers.

Citazione stile Chigago Style (17a edizione)

Castillon, David A. Conservation of Natural Resources: A Resource Management Approach. Dubuque, Iowa: Wm. C. Brown Publishers, 1992.

Citatione MLA (9a ed.)

Castillon, David A. Conservation of Natural Resources: A Resource Management Approach. Wm. C. Brown Publishers, 1992.