APA (7th ed.) Citation

Toy, E. C., Liu, T. H., & Campbell, A. R. (2012). Case files (Fourth edition.). McGraw-Hill Medical.

Chicago Style (17th ed.) Citation

Toy, Eugene C., Terrence H. Liu, and Andre R. Campbell. Case Files. Fourth edition. New York: McGraw-Hill Medical, 2012.

MLA (9th ed.) Citation

Toy, Eugene C., et al. Case Files. Fourth edition. McGraw-Hill Medical, 2012.