APA aipamena

Ramsay, M. E., Andrews, N. J., Trotter, C. L., Kaczmarski, E. B., & Miller, E. (2003). Herd immunity from meningococcal serogroup C conjugate vaccination in England: Database analysis. BMJ Publishing Group Ltd.

Chicago Style aipamena

Ramsay, Mary E., Nick J. Andrews, Caroline L. Trotter, Edward B. Kaczmarski, and Elizabeth Miller. Herd Immunity From Meningococcal Serogroup C Conjugate Vaccination in England: Database Analysis. BMJ Publishing Group Ltd, 2003.

MLA aipamena

Ramsay, Mary E., et al. Herd Immunity From Meningococcal Serogroup C Conjugate Vaccination in England: Database Analysis. BMJ Publishing Group Ltd, 2003.