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Germs: Mysterious Microorganisms (The Encyclopedia of Discovery and Invention)
Germs Mysterious Microorganisms - The Encyclopedia of Discovery and Invention Author:Don Nardo Discusses the nature and function of germs and how they can be responsible for both good and bad effects.
ISBN-13: 9781560062141 ISBN-10: 1560062142 Pages:96 Reading Level: Young Adult Rating: