Simons, D. G., Cummings, B. D., Simons, L. S., & Travell, J. G. (1999). Travell & Simons' myofascial pain and dysfunction: The trigger point manual (2nd ed.). Lippincott Williams & Wilkins.
Chicago Style (17th ed.) CitationSimons, David G., Barbara D. Cummings, Lois S. Simons, and Janet G. Travell. Travell & Simons' Myofascial Pain and Dysfunction: The Trigger Point Manual. 2nd ed. Philadelphia: Lippincott Williams & Wilkins, 1999.
MLA (8th ed.) CitationSimons, David G., et al. Travell & Simons' Myofascial Pain and Dysfunction: The Trigger Point Manual. 2nd ed. Lippincott Williams & Wilkins, 1999.
Warning: These citations may not always be 100% accurate.