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ספרים בחינם

An Inquiry into the Causes and Effects of the Variolae Vaccinae A Disease Discovered in Some of the Western Counties of England, Particularly Gloucestershire, and Known by the Name of the Cow Pox

Edward Jenner · 2009

ספרייה ציבורית, Project Gutenberg. בלי הרשמה.

Smallpox -- Vaccination -- Early works to 1800Vaccinia -- Early works to 1800Vaccination -- Early works to 1800