APA (7e ed.) Bronvermelding

Calleja, H. B., & Sibulo, A. S. J. (1996). The leading edge in cardiology 2. St. Luke's Heart Institution.

Chicago (17e ed.) Bronvermelding

Calleja, Homobono B., en Antonio S. Jr Sibulo. The Leading Edge in Cardiology 2. Metro Manila: St. Luke's Heart Institution, 1996.

MLA (9e ed.) Bronvermelding

Calleja, Homobono B., en Antonio S. Jr Sibulo. The Leading Edge in Cardiology 2. St. Luke's Heart Institution, 1996.