APA (7th ed.) Citation

Whittington, D., Hanemann, W. M., Sadoff, C., & Jeuland, M. (2012). The Challenge of Improving Water and Sanitation Services in Less Developed Countries.

Chicago Style (17th ed.) Citation

Whittington, Dale, W. Michael Hanemann, Claudia Sadoff, and Marc Jeuland. The Challenge of Improving Water and Sanitation Services in Less Developed Countries. 2012.

MLA (8th ed.) Citation

Whittington, Dale, et al. The Challenge of Improving Water and Sanitation Services in Less Developed Countries. 2012.