Cita APA (7a ed.)

Tiffen, M., Mortimore, M., & Gichuki, F. (1994). More people, less erosion: Environmental recovery in Kenya. J. Wiley.

Cita Chicago Style (17a ed.)

Tiffen, Mary, Michael Mortimore, y Francis Gichuki. More People, Less Erosion: Environmental Recovery in Kenya. Chichester: J. Wiley, 1994.

Cita MLA (9a ed.)

Tiffen, Mary, et al. More People, Less Erosion: Environmental Recovery in Kenya. J. Wiley, 1994.