APA (7th ed.) Citation

Engel, B. (2007). The Jekyll and Hyde syndrome: What to do if someone in your life has a dual personality or if you do. John Wiley and Sons,Inc.

Chicago Style (17th ed.) Citation

Engel, Beverly. The Jekyll and Hyde Syndrome: What to Do If Someone in Your Life Has a Dual Personality or If You Do. Hoboken: John Wiley and Sons,Inc, 2007.

MLA (9th ed.) Citation

Engel, Beverly. The Jekyll and Hyde Syndrome: What to Do If Someone in Your Life Has a Dual Personality or If You Do. John Wiley and Sons,Inc, 2007.