Cita APA (7a ed.)

Pretty, J. N., Toulmin, C., & Williams, S. B. (2011). Sustainable intensification: Increasing productiivty in African food and agricultural systems. Earthscan.

Cita Chicago Style (17a ed.)

Pretty, Jules N., Camilla Toulmin, y Stella B. Williams. Sustainable Intensification: Increasing Productiivty in African Food and Agricultural Systems. London, UK: Earthscan, 2011.

Cita MLA (8a ed.)

Pretty, Jules N., et al. Sustainable Intensification: Increasing Productiivty in African Food and Agricultural Systems. Earthscan, 2011.