Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Brouwer, Floor, y Bob Crabtree. Environmental Indicator and Agricultural Policy. Oxon: CABI Publishing, 1999.

Cita MLA (9a ed.)

Brouwer, Floor, y Bob Crabtree. Environmental Indicator and Agricultural Policy. CABI Publishing, 1999.