TY  - BOOK
AU  - Haddon, William., Suchman, Edward A. and Klein, David
TI  - Accident research: : methords and approaches
U1  - 001.42 
PY  - 1964///
CY  - New York
PB  - ; Harper & Row Publishers
KW  - Reaserch Methodology
KW  - Types Of Research
ER  -