Citação norma APA

Yu, X., Sun, Y., Frasch, C., Concepcion, N., & Nahm, M. H. (1999). Pneumococcal Capsular Polysaccharide Preparations May Contain Non-C-Polysaccharide Contaminants That Are Immunogenic. American Society for Microbiology.

Citação norma Chicago

Yu, Xinhong, Yan Sun, Carl Frasch, Nelydia Concepcion, and Moon H. Nahm. Pneumococcal Capsular Polysaccharide Preparations May Contain Non-C-Polysaccharide Contaminants That Are Immunogenic. American Society for Microbiology, 1999.

Citação norma MLA

Yu, Xinhong, et al. Pneumococcal Capsular Polysaccharide Preparations May Contain Non-C-Polysaccharide Contaminants That Are Immunogenic. American Society for Microbiology, 1999.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.