Cita APA (7a ed.)

Phillips, H., Phillips, J., & Walford, R. (1976). Progress and change in West Africa (1. publ.). Longman.

Cita Chicago Style (17a ed.)

Phillips, Howard, Jenifer Phillips, y Rex Walford. Progress and Change in West Africa. 1. publ. London: Longman, 1976.

Cita MLA (9a ed.)

Phillips, Howard, et al. Progress and Change in West Africa. 1. publ. Longman, 1976.