Παραπομπή APA

Brouwer, F., & Crabtree, B. (1999). Environmental indicators and agricultural policy. CABI Publishing.

Παραπομπή Chicago Style

Brouwer, Floor, και Bob Crabtree. Environmental Indicators and Agricultural Policy. New York: CABI Publishing, 1999.

Παραπομπή MLA

Brouwer, Floor, και Bob Crabtree. Environmental Indicators and Agricultural Policy. CABI Publishing, 1999.