MLA

Onkar N. Tripathi, Ursula Ravens, Michael C. Sanguinetti, et al. Heart Rate and Rhythm. Springer Berlin Heidelberg, 2011.

APA

Onkar N. Tripathi, M. C. Sanguinetti, Ravens, U., Sanguinetti, M. C, & Tripathi, O. N. (2011). Heart Rate and Rhythm. Springer Berlin Heidelberg.

Chicago

Onkar N. Tripathi, Ursula Ravens, Michael C. Sanguinetti, Ursula Ravens, Michael C Sanguinetti, and Onkar N Tripathi. Heart Rate and Rhythm. : Springer Berlin Heidelberg, 2011.