Cita APA

Steinfeld, H., Gerber, P., Waáenaar, T., Castel, V., Rosales, M., & De Haan, C. (2006). Livestock`s long shadow: Environmental iáues and options. Rome (Italy):.

Citación estilo Chicago

Steinfeld, H., P. Gerber, T. Waáenaar, V. Castel, M. Rosales, y C. De Haan. Livestock`s Long Shadow: Environmental Iáues and Options. Rome (Italy):, 2006.

Cita MLA

Steinfeld, H., et al. Livestock`s Long Shadow: Environmental Iáues and Options. Rome (Italy):, 2006.