Cita APA (7a ed.)

Morgan, R. P. C., & Davidson, D. (1986). Soil erosion and conservation (Rev. and enl. ed.). Longman.

Cita Chicago Style (17a ed.)

Morgan, R. P. C., y D.A Davidson. Soil Erosion and Conservation. Rev. and enl. ed. Essex: Longman, 1986.

Cita MLA (9a ed.)

Morgan, R. P. C., y D.A Davidson. Soil Erosion and Conservation. Rev. and enl. ed. Longman, 1986.