APA (7th ed.) Citation

Cook, S., Perry, T., & Ward, G. (2004). The rough guide to USA. Rough guides.

Chicago Style (17th ed.) Citation

Cook, Samantha, Tim Perry, and Greg Ward. The Rough Guide to USA. London: Rough guides, 2004.

MLA (9th ed.) Citation

Cook, Samantha, et al. The Rough Guide to USA. Rough guides, 2004.