Gaya APA

Havas, S. et al (2007). American medical association quide to preventing and treating heart disease : essential information you and your family need to know about having a healthy heart . : John Wiley.

Gaya MLA

Havas, Stephen. et al. "American medical association quide to preventing and treating heart disease : essential information you and your family need to know about having a healthy heart". : John Wiley, 2007. Textbook.