APA-viite

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

Chicago-tyylinen lähdeviittaus

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

MLA-viite

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