APA (7th ed.) Citation

Van Gulik, R. (1963). The emperor's pearl: A Chinese detective story. Heinemann.

Chicago Style (17th ed.) Citation

Van Gulik, Robert. The Emperor's Pearl: A Chinese Detective Story. London: Heinemann, 1963.

MLA (9th ed.) Citation

Van Gulik, Robert. The Emperor's Pearl: A Chinese Detective Story. Heinemann, 1963.