APA (7th ed.) Citation

Webster, P., & Palmer, T. (1997). The past and the future of El Nino.

Chicago Style (17th ed.) Citation

Webster, P., and T. Palmer. The Past and the Future of El Nino. 1997.

MLA (9th ed.) Citation

Webster, P., and T. Palmer. The Past and the Future of El Nino. 1997.

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