APA Style

Kaplan, J, A. et al (2011). Kaplan's cardiac anesthesia : the echo era (6th). St. Louis: Saunders/Elsevier.

MLA Style

Kaplan, Joel, A. et al. "Kaplan's cardiac anesthesia : the echo era". 6th St. Louis: Saunders/Elsevier, 2011. Text.