Cita APA (7a ed.)
Herrero, M., Thornton, P. K., Gerber, P. J., & Reid, R. S. (2009). Livestock, livelihoods and the environment: Understanding the trade-offs. Elsevier.
Cita Chicago Style (17a ed.)
Herrero, Mario, Philip K. Thornton, Pierre J. Gerber, y Robin S. Reid. Livestock, Livelihoods and the Environment: Understanding the Trade-offs. Elsevier, 2009.
Cita MLA (9a ed.)
Herrero, Mario, et al. Livestock, Livelihoods and the Environment: Understanding the Trade-offs. Elsevier, 2009.
Precaución: Estas citas no son 100% exactas.