APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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