APA (7 वां संस्करण) प्रशस्ति पत्र

SHEA MICHAEL. (1988). INFLUENCE: HOW TO MAKE THE SYSTEM WORK FOR YOU. SPHERE BOOKS LTD.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

SHEA MICHAEL. INFLUENCE: HOW TO MAKE THE SYSTEM WORK FOR YOU. LONDON: SPHERE BOOKS LTD, 1988.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

SHEA MICHAEL. INFLUENCE: HOW TO MAKE THE SYSTEM WORK FOR YOU. SPHERE BOOKS LTD, 1988.