Cita APA (7a ed.)
Humphreys, E., Peden, D. G., Twomlow, S., Rockström, J., Oweis, T. Y., Huber-Lee, A., & Harrington, L. W. (2008). Improving rainwater productivity: Topic 1 Synthesis Paper. CGIAR Challenge Program on Water and Food.
Cita Chicago Style (17a ed.)
Humphreys, E., Donald G. Peden, Stephen Twomlow, Johan Rockström, Theib Y. Oweis, Annette Huber-Lee, y Larry W. Harrington. Improving Rainwater Productivity: Topic 1 Synthesis Paper. CGIAR Challenge Program on Water and Food, 2008.
Cita MLA (9a ed.)
Humphreys, E., et al. Improving Rainwater Productivity: Topic 1 Synthesis Paper. CGIAR Challenge Program on Water and Food, 2008.
Precaución: Estas citas no son 100% exactas.