Dyfyniad APA

Anderson, D. A. (2010). Environmental economics and natural resource management (3rd ed.). Routledge.

Dyfyniad Arddull Chicago

Anderson, David A. Environmental Economics and Natural Resource Management. 3rd ed. London ; New York: Routledge, 2010.

Dyfyniad MLA

Anderson, David A. Environmental Economics and Natural Resource Management. 3rd ed. Routledge, 2010.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.