Cita APA (7th ed.)

Pollard, A., Scheifele, D., & Rosenstein, N. (2001). Epidemiology of meningococcal disease in north america.

Cita Chicago (17th ed.)

Pollard, A., D. Scheifele, i N. Rosenstein. Epidemiology of Meningococcal Disease in North America. 2001.

Cita MLA (9th ed.)

Pollard, A., et al. Epidemiology of Meningococcal Disease in North America. 2001.