APA citiranje

Snell, S. H. (1894). An Outbreak of Small-Pox: Vaccination and Revaccination.

Citação norma Chicago

Snell, Sidney H. An Outbreak of Small-Pox: Vaccination and Revaccination. 1894.

MLA citiranje

Snell, Sidney H. An Outbreak of Small-Pox: Vaccination and Revaccination. 1894.

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