Cita APA (7th ed.)

PORTAL R W. (1988). HEART ATTACK: PREVENTION AND TREATMENT. BRITISH MEDICAL ASSOCIATIONS JAICO PUBLISHING HOU.

Cita Chicago (17th ed.)

PORTAL R W. HEART ATTACK: PREVENTION AND TREATMENT. NEW DELHI: BRITISH MEDICAL ASSOCIATIONS JAICO PUBLISHING HOU, 1988.

Cita MLA (9th ed.)

PORTAL R W. HEART ATTACK: PREVENTION AND TREATMENT. BRITISH MEDICAL ASSOCIATIONS JAICO PUBLISHING HOU, 1988.