Cita APA

Marshall, K. J., Musher, D. M., Watson, D., & Mason, E. O. (1993). Testing of Streptococcus pneumoniae for resistance to penicillin.

Citación estilo Chicago

Marshall, K J., D M. Musher, D. Watson, y E O. Mason. Testing of Streptococcus Pneumoniae for Resistance to Penicillin. 1993.

Cita MLA

Marshall, K J., D M. Musher, D. Watson, y E O. Mason. Testing of Streptococcus Pneumoniae for Resistance to Penicillin. 1993.