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ספרים בחינם

An account of the manner of inoculating for the small pox in the East Indies With some observations on the practice and mode of treating that disease in those parts

J. Z. (John Zephaniah) Holwell · 2016

ספרייה ציבורית, Project Gutenberg. בלי הרשמה.

Smallpox -- VaccinationSmallpox -- Prevention