The *microbiological safety of food : proceedings of the Eight international symposium on food microbiology : Reading, England september 1972 / organized by the Committee on food microbiology and hygiene of the International Association of Microbiological Societies ; edited by Betty C. Hobbs and J. H. B. Christian London ; New York : Academic Press, 1973 XV, 487 p. : ill. ; 22 cm.