MLA

Gaggin, Hanna K, James L Januzzi, and Jr Januzzi. Mgh Cardiology Board Review. Springer London, 2014.

APA

Gaggin, H. K, Januzzi, J. L, & Januzzi, J. (2014). MGH Cardiology Board Review. Springer London.

Chicago

Gaggin, Hanna K., James L Januzzi, and Jr Januzzi. MGH Cardiology Board Review. : Springer London, 2014.