Cita APA

Smith, E. A., Jahnke, S. A., Poston, W. S., Williams, L. N., Haddock, C. K., Schroeder, S. A., & Malone, R. E. (2014). Is It Time for a Tobacco-free Military? N Engl J Med.

Chicago Style Citation

Smith, Elizabeth A., Sara A. Jahnke, Walker S.C Poston, Larry N. Williams, Christopher K. Haddock, Steven A. Schroeder, i Ruth E. Malone. "Is It Time for a Tobacco-free Military?" N Engl J Med 2014.

Cita MLA

Smith, Elizabeth A., et al. "Is It Time for a Tobacco-free Military?" N Engl J Med 2014.