Industrial hygiene aspects of plant operations : vol. 1, Process flows / Lester V. Cralley, Lewis J. Cralley, editors. Cralley, Lester V. ed. Cralley, Lewis J., 1911- jt. ed. Industrial hygiene. Manufacturing processes Health aspects. RC967 .I48 1982 620.85 19 CRI Associate editors: v. 2, John E. Mutchler; v. 3, Knowlton J. Caplan. Includes bibliographical references and indexes. New York ; London : Macmillan ; Collier Macmillan, c1982. c1982. 1982 Text v. : eng