APA (7th ed.) Citation

Hammond, A. L., Kramer, W. J., Katz, R. S., Tran, J. T., Walker, C., & Neal, C. (2012). The Next 4 Billion. World Bank.

Chicago Style (17th ed.) Citation

Hammond, Allen L., William J. Kramer, Robert S. Katz, Julia T. Tran, Courtland Walker, and Christopher Neal. The Next 4 Billion. World Bank, 2012.

MLA (8th ed.) Citation

Hammond, Allen L., et al. The Next 4 Billion. World Bank, 2012.