MLA

McGuffin, Peter, and Robin Murray. The New Genetics of Mental Illness. Oxford: Butterworth-Heinemann, 1991.

APA

McGuffin, P., & Murray, R. (1991). The new genetics of mental illness. Oxford: Butterworth-Heinemann.

Chicago

McGuffin, Peter ed., and Robin Murray ed. The New Genetics of Mental Illness. Oxford: Butterworth-Heinemann, 1991.