APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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

Let op: Deze citaties zijn niet altijd 100% accuraat.