APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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