Microbial classification : twelfth symposium of the Society for General Microbiology held at the Royal Institution, London, April 1962 / [edited by G.C. Ainsworth, H.A. Sneath] Society for General Microbiology. Symposium (12th : 1962 : London, England) Ainsworth, G. C. (Geoffrey Clough), 1905-1998. Sneath, H. A. Microorganisms Congresses. Microbiology Classification Congresses. Microbiology classification Congresses. 576 SOM Includes bibliographical references and index. Cambridge [Cambridgeshire] : Published for the Society for General Microbiology at the University Press 1962. 1962. 1962 Text 483 p., 4 p. of plates : eng Symposium of the Society for General Microbiology ; 12th Symposium of the Society for General Microbiology ; 12. Symposium of the Society for General Microbiology ; 12th.