APA

Schrag S. J., McGee L., Whitney C. G., Beall B., Craig A. S., Choate M. E., Jorgensen J. H., Facklam R. R. & Klugman K. P. (20040930). Emergence of Streptococcus pneumoniae with very-high-level resistance to penicillin. : Antimicrobial agents and chemotherapy.

Chicago

Schrag Stephanie J, McGee Lesley, Whitney Cynthia G, Beall Bernard, Craig Allen S, Choate Miriam E, Jorgensen James H, Facklam Richard R and Klugman Keith P. 20040930. Emergence of Streptococcus pneumoniae with very-high-level resistance to penicillin. : Antimicrobial agents and chemotherapy.

Harvard

Schrag S. J., McGee L., Whitney C. G., Beall B., Craig A. S., Choate M. E., Jorgensen J. H., Facklam R. R. and Klugman K. P. (20040930). Emergence of Streptococcus pneumoniae with very-high-level resistance to penicillin. : Antimicrobial agents and chemotherapy.

MLA

Schrag Stephanie J, McGee Lesley, Whitney Cynthia G, Beall Bernard, Craig Allen S, Choate Miriam E, Jorgensen James H, Facklam Richard R and Klugman Keith P. Emergence of Streptococcus pneumoniae with very-high-level resistance to penicillin. : Antimicrobial agents and chemotherapy. 20040930.