Cita APA (7a ed.)

Association of Coloproctology of Great Britain and Ireland, issuing body, & Asociación Espan̋ola de Coloproctología, issuing body. (1999). Colorectal disease. Blackwell Science.

Cita Chicago Style (17a ed.)

Association of Coloproctology of Great Britain and Ireland, issuing body, y issuing body Asociación Espan̋ola de Coloproctología. Colorectal Disease. [Oxford, England]: Blackwell Science, 1999.

Cita MLA (9a ed.)

Association of Coloproctology of Great Britain and Ireland, issuing body, y issuing body Asociación Espan̋ola de Coloproctología. Colorectal Disease. Blackwell Science, 1999.