APA (7th ed.) Citation

JS, K., & Keystone, J. S. (2001). Reemergence of malaria: Increasing risks for travelers. Journal of Travel Medicine, 8, S42.

Chicago Style (17th ed.) Citation

JS, Keystone, and J S. Keystone. "Reemergence of Malaria: Increasing Risks for Travelers." Journal of Travel Medicine 8 (2001): S42.

MLA (9th ed.) Citation

JS, Keystone, and J S. Keystone. "Reemergence of Malaria: Increasing Risks for Travelers." Journal of Travel Medicine, vol. 8, 2001, p. S42.