APA način citiranja

Johnson, D. R., & Kaplan, E. L. (1988). Microtechnique for serum opacity factor characterization of group A streptococci adaptable to the use of human sera.

Čikaški stil citiranja

Johnson, D R., i E L. Kaplan. Microtechnique for Serum Opacity Factor Characterization of Group A Streptococci Adaptable to the Use of Human Sera. 1988.

MLA način citiranja

Johnson, D R., i E L. Kaplan. Microtechnique for Serum Opacity Factor Characterization of Group A Streptococci Adaptable to the Use of Human Sera. 1988.