00000cam a22000004a 4500 UP-1685523046125310083 Buklod 20230503092606.0 m o j ta 991231s1956 xx r |||| u|eng|| (iLib)UPMNL-00000044844 Q185 E56 Yaffe, Charles D.. Encyclopedia of instrumentation for industrial hygiene Prepared and issued cooperatively by the University of Michigan Institute of Industrial Health and School of Public Health Service, U.S. Dept. of Health, Education and Welfare. Technical editors, Charles D. Yaffe ... [et al.]. Ann Arbor University of Michigan, Institute of Industril Health c1956 xvii, 1243 p. ill. Industrial hygiene. Scientific apparatus and instruments. Michigan. University. Institute of Industrial Health. U.S. Public Health Service. UPMNL CPH Q185 E56 Book