Cita APA

Kratzer, G. L., & Demarest, R. J. (1985). Office managements of colon and rectal disease.

Citación estilo Chicago

Kratzer, Guy L., y Robert J. Demarest. Office Managements of Colon and Rectal Disease. 1985.

Cita MLA

Kratzer, Guy L., y Robert J. Demarest. Office Managements of Colon and Rectal Disease. 1985.