TY  - BOOK
AU  - George,Darren
AU  - Mallery,Paul
TI  - SPSS for Windows step by step: a simple guide and reference, 17.0 update 
SN  - 9780205755615
AV  - HA32 G467S 2010
PY  - 2010///
CY  - Boston, Mass.
PB  - Allyn & Bacon
N1  - Includes bibliographical references and index
ER  -