APA (7th ed.) Citation

Simpson, P. (2007). His dark materials. Rough Guide Ltd. Publishers.

Chicago Style (17th ed.) Citation

Simpson, Paul. His Dark Materials. London: Rough Guide Ltd. Publishers, 2007.

MLA (9th ed.) Citation

Simpson, Paul. His Dark Materials. Rough Guide Ltd. Publishers, 2007.

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