TY  - BOOK
TI  - Research design and statistics for the safety and health professional / 
SN  - 9780442020415
AV  - T55.3 .C33 1997
PY  - 1997///
CY  - New York
PB  - Van Nostrand Reinhold
KW  -  Industrial safety
KW  - Industrial hygiene
KW  - Statistical methods
N1  - Includes bibliographical references and index
ER  -