APA (7 वां संस्करण) प्रशस्ति पत्र

Wright, J. (2006). Why is that so funny?: A practical exploration of physical comedy. Nick Hern Books.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Wright, John. Why Is That so Funny?: A Practical Exploration of Physical Comedy. London: Nick Hern Books, 2006.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Wright, John. Why Is That so Funny?: A Practical Exploration of Physical Comedy. Nick Hern Books, 2006.