Cita APA (7a ed.)

Wakefield, J. S., & Yarnall, S. R. (1975). The history database: Computer-processed and other medical questionnaires (3d ed.). Medical Computer Services Association.

Cita Chicago Style (17a ed.)

Wakefield, Jay S., y Stephen R. Yarnall. The History Database: Computer-processed and Other Medical Questionnaires. 3d ed. Seattle: Medical Computer Services Association, 1975.

Cita MLA (8a ed.)

Wakefield, Jay S., y Stephen R. Yarnall. The History Database: Computer-processed and Other Medical Questionnaires. 3d ed. Medical Computer Services Association, 1975.