APA

Haan C. d., Steinfeld H. & Blackburn H. (1990). Livestock the environment : finding a balance. [Lugar de publicación no identificado]: European Commission. Directorate-General for International Cooperation and Development.

Chicago

Haan Cees de, Steinfeld Henning and Blackburn Harvey. 1990. Livestock the environment : finding a balance. [Lugar de publicación no identificado]: European Commission. Directorate-General for International Cooperation and Development.

Harvard

Haan C. d., Steinfeld H. and Blackburn H. (1990). Livestock the environment : finding a balance. [Lugar de publicación no identificado]: European Commission. Directorate-General for International Cooperation and Development.

MLA

Haan Cees de, Steinfeld Henning and Blackburn Harvey. Livestock the environment : finding a balance. [Lugar de publicación no identificado]: European Commission. Directorate-General for International Cooperation and Development. 1990.