Cita APA

Crabbe, T., Donmall, M., & Millar, T. (1999). Validation of the University of Manchester Drug Misuse Database. BMJ Group.

Citación estilo Chicago

Crabbe, T., M. Donmall, y T. Millar. Validation of the University of Manchester Drug Misuse Database. BMJ Group, 1999.

Cita MLA

Crabbe, T., M. Donmall, y T. Millar. Validation of the University of Manchester Drug Misuse Database. BMJ Group, 1999.