APA Citatie

Berry, A. M., Yother, J., Briles, D. E., Hansman, D., & Paton, J. C. (1989). Reduced virulence of a defined pneumolysin-negative mutant of Streptococcus pneumoniae.

Chicago Style citaat

Berry, A M., J. Yother, D E. Briles, D. Hansman, en J C. Paton. Reduced Virulence of a Defined Pneumolysin-negative Mutant of Streptococcus Pneumoniae. 1989.

MLA citatie

Berry, A M., et al. Reduced Virulence of a Defined Pneumolysin-negative Mutant of Streptococcus Pneumoniae. 1989.