APA (7th ed.) Citation

DQ, M., Jr, C. R., & PM, P. (1991). Basic trauma life support: What is it? The American journal of emergency medicine, 9(2), 189. https://doi.org/10.1016/0735-6757(91)90188-p

Chicago Style (17th ed.) Citation

DQ, McArdle, Cook RT Jr, and Paris PM. "Basic Trauma Life Support: What Is It?" The American Journal of Emergency Medicine 9, no. 2 (1991): 189. https://doi.org/10.1016/0735-6757(91)90188-p.

MLA (9th ed.) Citation

DQ, McArdle, et al. "Basic Trauma Life Support: What Is It?" The American Journal of Emergency Medicine, vol. 9, no. 2, 1991, p. 189, https://doi.org/10.1016/0735-6757(91)90188-p.