Seasonable thoughts and advices upon inoculation [electronic resource] : In which (first) the benefits and advantages of that ... practice are set forth and illustrated. And by which (secondly) they are recommended ... By Dr. Perry
With a final errata leaf., Reproduction of original from the National Library of Medicine., and Available online to authorized PSU users as part of the Medicine, science, and technology series of Eighteenth century collections online.
Electronic reproduction. Farmington Hills, Mich. : Thomson Gale, 2003. Available via the World Wide Web. Access limited by licensing agreements