TY  - GEN
AU  - SHAUGHNESSY,John.J
AU  - Eugene B Zechmeister,Jeanne S Zechmeister
TI  - Research Methods in Psychology
SN  - 0-07-249446-8
U1  - 658 SHA 
PY  - 2003///
CY  - Boston
PB  - McGraw.Hill
ER  -