Bergman, T. F., & Peterson, D. H. (2011). Chiropractic Technique: Principles and Procedures (3rd ed.). St. Louis: Mosby.
Gatterman, M. I. (2005). Foundations of Chiropractic: Subluxation (2nd ed.). St. Louis; Mosby.
Haldeman, S. (2005). Principles and Practice of Chiropractic (3rd ed.). New York; McGraw-Hill.
Leach, R. A. (2004). The Chiropractic Theories: A Textbook of Scientific Research (4th ed.). Baltimore; Lippincott Williams & Wilkins.
Redwood, D., & Cleveland, C., III (2003). Fundamentals of Chiropractic. St. Louis: Mosby.