Cita APA (7a ed.)
Grimsdell, J., Bille, J., & Milligan, K. (1981). Alternative methods of aerial livestock census. International Livestock Centre for Africa.
Cita Chicago Style (17a ed.)
Grimsdell, J.J.R, Jean-Claude Bille, y K. Milligan. Alternative Methods of Aerial Livestock Census. International Livestock Centre for Africa, 1981.
Cita MLA (9a ed.)
Grimsdell, J.J.R, et al. Alternative Methods of Aerial Livestock Census. International Livestock Centre for Africa, 1981.
Precaución: Estas citas no son 100% exactas.