APA (7e ed.) Bronvermelding

Beahrs, O. H., Beahrs, O. H., Higgins, G. A., & Weinstein, J. J. (1986). Colorectal tumors. Lippincott.

Chicago (17e ed.) Bronvermelding

Beahrs, Oliver Howard, Oliver Howard Beahrs, George Alfred Higgins, en Jacob Joseph Weinstein. Colorectal Tumors. Philadelphia: Lippincott, 1986.

MLA (9e ed.) Bronvermelding

Beahrs, Oliver Howard, et al. Colorectal Tumors. Lippincott, 1986.