APA (7th ed.) Citation

Alcock, P., Erskine, A., & May, M. (1998). The student's companion to social policy. Blackwell.

Chicago Style (17th ed.) Citation

Alcock, Pete, Angus Erskine, and Margaret May. The Student's Companion to Social Policy. Oxford: Blackwell, 1998.

MLA (8th ed.) Citation

Alcock, Pete, et al. The Student's Companion to Social Policy. Blackwell, 1998.