Shackelford, R. T., Zuidema, G. D., & Condon, R. E. (1996). Shackelford's surgery of the alimentary tract (4th ed.). Saunders.
Chicago Style (17th ed.) CitationShackelford, Richard T., George D. Zuidema, and Robert E. Condon. Shackelford's Surgery of the Alimentary Tract. 4th ed. Philadelphia [etc.]: Saunders, 1996.
MLA (9th ed.) CitationShackelford, Richard T., et al. Shackelford's Surgery of the Alimentary Tract. 4th ed. Saunders, 1996.
Warning: These citations may not always be 100% accurate.