MLA

Olshansky, et al. Arrhythmia Essentials. Elsevier, 2017.

APA

Olshansky, O., Chung, M. K, Goldschlager, N., & Pogwizd, S. M. (2017). Arrhythmia Essentials. Elsevier.

Chicago

Olshansky, Mina K Chung, Nora Goldschlager, and Steven M Pogwizd. Arrhythmia Essentials. : Elsevier, 2017.