MLA

Hollenberg, Steven M, Neil S Skolnik, and Tracy Walker. Cardiology In Family Practice. Humana Press, 2006.

APA

Hollenberg, S. M, Skolnik, N. S, & Walker, T. (2006). Cardiology in Family Practice. Humana Press.

Chicago

Hollenberg, Steven M., Neil S Skolnik, and Tracy Walker. Cardiology In Family Practice. : Humana Press, 2006.