Cita APA

Steinfeld, H., Haan, C. d. 1., & Blackburn, H. (1999). Livestock-environment interactions: Issues and options. [Lugar de publicación no identificado]: European Commission Directorate General for Development.

Citación estilo Chicago

Steinfeld, Henning, Cornelis de 1940- Haan, y Harvey Blackburn. Livestock-environment Interactions: Issues and Options. [Lugar de publicación no identificado]: European Commission Directorate General for Development, 1999.

Cita MLA

Steinfeld, Henning, Cornelis de 1940- Haan, y Harvey Blackburn. Livestock-environment Interactions: Issues and Options. [Lugar de publicación no identificado]: European Commission Directorate General for Development, 1999.