TY  - BOOK
AU  - Gravetter Frederick
AU  -  Wallnau Larry B
TI  - Statistics for the behavioural sciences:  A first c   
SN  - 0314852417
U1  - Sigma: (B28), M5 
PY  - 1985///
CY  - New York
PB  - West Publishing USA       
KW  - Social Sciences
ER  -