Cruickshank, Robert, Duguid, J. P., Marmion, B. P. & Swain, R. H.A. Medical microbiology A guide to the laboratory diagnosis and control of infection - 12th ed - Churchill Livingstone, Edinburgh 1973 - xii,667 ISBN: 0 443 01137 0 Dewey Class. No.: 616.01 Cru