APA (7 वां संस्करण) प्रशस्ति पत्र

Hamble, R. (1991). What's wrong with my Willy? (1. Auflage.). GMP Publishers.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Hamble, Ray. What's Wrong with My Willy? 1. Auflage. London: GMP Publishers, 1991.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Hamble, Ray. What's Wrong with My Willy? 1. Auflage. GMP Publishers, 1991.