APA ציטוט

Nicholson, G., & Baker, A. Z. (1940). Eleven Years of Diphtheria Immunization in a Rural District.

Citação norma Chicago

Nicholson, G., and Audrey Z. Baker. Eleven Years of Diphtheria Immunization in a Rural District. 1940.

ציטוט MLA

Nicholson, G., and Audrey Z. Baker. Eleven Years of Diphtheria Immunization in a Rural District. 1940.