TY  - BOOK
AU  - Tasto,Donald L.
TI  - Extent of exposure survey of shift work
U1  -  363.1790973 
PY  - 1978///
CY  - Washington, D. C.
PB  - United States Government Printing Office
KW  - Occupational diseases
KW  - United States
KW  - Environmental monitoring
N1  - At head of title: NIOSH technical information
ER  -