APA aipamena

Brueggemann, A., Pai, R., Crook, D., & Beall, B. (2007). Vaccine escape recombinants emerge after pneumococcal vaccination in the United States.

Chicago Style aipamena

Brueggemann, A., R. Pai, D. Crook, and B. Beall. Vaccine Escape Recombinants Emerge After Pneumococcal Vaccination in the United States. 2007.

MLA aipamena

Brueggemann, A., et al. Vaccine Escape Recombinants Emerge After Pneumococcal Vaccination in the United States. 2007.