APA (7th ed.) Citation

Humphreys, R., Chaplin, B., Morrill, R., & Schafer, S. (2006). The mini rough guide to London. Rough guides.

Chicago Style (17th ed.) Citation

Humphreys, Rob, Beth Chaplin, Rebecca Morrill, and Sally Schafer. The Mini Rough Guide to London. London: Rough guides, 2006.

MLA (9th ed.) Citation

Humphreys, Rob, et al. The Mini Rough Guide to London. Rough guides, 2006.