APA (7th ed.) Citation

Barker, L. R., Burton, J. R., & Zieve, P. D. (1991). Principles of ambulatory medicine (3rd ed.). Williams & Wilkins.

Chicago Style (17th ed.) Citation

Barker, L. Randol, John Russell Burton, and Philip D. Zieve. Principles of Ambulatory Medicine. 3rd ed. Baltimore: Williams & Wilkins, 1991.

MLA (9th ed.) Citation

Barker, L. Randol, et al. Principles of Ambulatory Medicine. 3rd ed. Williams & Wilkins, 1991.