Cita APA (7a ed.)

Haan, C. d., Steinfeld, H., & Blackburn, H. (1990). Livestock and the environment: Finding a balance. Development Policy Sustainable, Development and Natural Resources, European Commission.

Cita Chicago Style (17a ed.)

Haan, Cees de, Henning Steinfeld, y Harvey Blackburn. Livestock and the Environment: Finding a Balance. s.l: Development Policy Sustainable, Development and Natural Resources, European Commission, 1990.

Cita MLA (8a ed.)

Haan, Cees de, et al. Livestock and the Environment: Finding a Balance. Development Policy Sustainable, Development and Natural Resources, European Commission, 1990.