Cita APA (7a ed.)
Ehui, S. K., Li Pun, H., Mares, V., & Shapiro, B. I. (1998). The role of livestock in food security and environmental protection.
Cita Chicago Style (17a ed.)
Ehui, Simeon K., H.H Li Pun, V. Mares, y Barry I. Shapiro. The Role of Livestock in Food Security and Environmental Protection. 1998.
Cita MLA (9a ed.)
Ehui, Simeon K., et al. The Role of Livestock in Food Security and Environmental Protection. 1998.
Precaución: Estas citas no son 100% exactas.