TY  - BOOK
AU  - Levin. 
AU  - Jack and Fox, ,James Alan
TI  - Elementary statistics in social research `
SN  - 81-317-0402-5 
U1  - 001.42 
PY  - 2008///
CY  - New Delhi
PB  -  Pearson 
KW  - Engineering
ER  -