APA (7th ed.) Citation

Thomas, B., Smallman, & Yale. (1999). Britain, 3rd edition. Lonely Planet Publications.

Chicago Style (17th ed.) Citation

Thomas, Bryn, Smallman, and Yale. Britain, 3rd Edition. Melbourne: Lonely Planet Publications, 1999.

MLA (8th ed.) Citation

Thomas, Bryn, et al. Britain, 3rd Edition. Lonely Planet Publications, 1999.