Margulis, Lynn, 1938- Microcosmos : : four billion years of evolution from our microbial ancestors / [electronic resource] / Lynn Margulis and Dorion Sagan ; foreword by Lewis Thomas.. — New York : : Summit Books,, c1986.. — 301 p. : : ill. ; 23 cm. Includes index. Bibliography: p. 277-282. ISBN: 0671441698 9780671441692 LCCN: 86004432 Nat. Bib. Agency Control No.: 8610682 DNLM Subjects--Topical Terms: Evolution (Biology)Microorganisms--Evolution.Évolution.Micro-organismes--Évolution.Evolution.Microbiology. LC Class. No.: QH371 / .M28 1986 Dewey Class. No.: 575 National Library of Medicine Call No.: EE6909