APA (7th ed.) Citation

Pratchett, T. (1988). Wyrd sisters. Roc/New American Library.

Chicago Style (17th ed.) Citation

Pratchett, Terry. Wyrd Sisters. New York: Roc/New American Library, 1988.

MLA (9th ed.) Citation

Pratchett, Terry. Wyrd Sisters. Roc/New American Library, 1988.

Warning: These citations may not always be 100% accurate.