MLA

Nutt, David J., Caroline Bell, and John Potokar. Depression, Anxiety and the Mixed Conditions. 1. publ. London: Dunitz, 1997.

APA

Nutt, D. J., Bell, C., & Potokar, J. (1997). Depression, anxiety and the mixed conditions. 1. publ. London: Dunitz.

Chicago

Nutt, David J., Caroline Bell, and John Potokar. Depression, Anxiety and the Mixed Conditions. 1. publ. London: Dunitz, 1997.