APA aipamena

Ashton, F. E., Ryan, J. A., Borczyk, A., Caugant, D. A., Mancino, L., & Huang, D. (1991). Emergence of a virulent clone of Neisseria meningitidis serotype 2a that is associated with meningococcal group C disease in Canada.

Chicago Style aipamena

Ashton, F E., J A. Ryan, A. Borczyk, D A. Caugant, L. Mancino, and D. Huang. Emergence of a Virulent Clone of Neisseria Meningitidis Serotype 2a That Is Associated With Meningococcal Group C Disease in Canada. 1991.

MLA aipamena

Ashton, F E., et al. Emergence of a Virulent Clone of Neisseria Meningitidis Serotype 2a That Is Associated With Meningococcal Group C Disease in Canada. 1991.