APA (7 वां संस्करण) प्रशस्ति पत्र

PETZOLD CHARLES. (1999). PROGRAMMING WINDOWS WITH CD (5.). WP PUBLISHERS AND DISTRIBUTORS.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

PETZOLD CHARLES. PROGRAMMING WINDOWS WITH CD. 5. BANGALORE: WP PUBLISHERS AND DISTRIBUTORS, 1999.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

PETZOLD CHARLES. PROGRAMMING WINDOWS WITH CD. 5. WP PUBLISHERS AND DISTRIBUTORS, 1999.