APA

Jorgensen J. H., Weigel L. M., Ferraro M. J., Swenson J. M. & Tenover F. C. (19990421). Activities of newer fluoroquinolones against Streptococcus pneumoniae clinical isolates including those with mutations in the gyrA, parC, and parE loci. : Antimicrobial agents and chemotherapy.

Chicago

Jorgensen J H, Weigel L M, Ferraro M J, Swenson J M and Tenover F C. 19990421. Activities of newer fluoroquinolones against Streptococcus pneumoniae clinical isolates including those with mutations in the gyrA, parC, and parE loci. : Antimicrobial agents and chemotherapy.

Harvard

Jorgensen J. H., Weigel L. M., Ferraro M. J., Swenson J. M. and Tenover F. C. (19990421). Activities of newer fluoroquinolones against Streptococcus pneumoniae clinical isolates including those with mutations in the gyrA, parC, and parE loci. : Antimicrobial agents and chemotherapy.

MLA

Jorgensen J H, Weigel L M, Ferraro M J, Swenson J M and Tenover F C. Activities of newer fluoroquinolones against Streptococcus pneumoniae clinical isolates including those with mutations in the gyrA, parC, and parE loci. : Antimicrobial agents and chemotherapy. 19990421.