APA (7th ed.) Citation

Keller, N., & Swaney, D. (1998). Tonga (3rd ed.). Lonely Planet Pub.

Chicago Style (17th ed.) Citation

Keller, Nancy, and Deanna Swaney. Tonga. 3rd ed. Hawthorn, Vic., Australia: Lonely Planet Pub, 1998.

MLA (9th ed.) Citation

Keller, Nancy, and Deanna Swaney. Tonga. 3rd ed. Lonely Planet Pub, 1998.