APA (7 वां संस्करण) प्रशस्ति पत्र

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

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

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

एमएलए (9वां संस्करण) प्रशस्ति पत्र

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

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