TY  - BOOK
AU  - MORGAN, GEORGE. A
TI  - IBM SPSS for introductory statistics : use and interpretation
SN  - 978-84872-982-7
U1  - 005.5'5 
PY  - 2013///
CY  - New York
PB  - Routledge
KW  - Research Problems
KW  - Data Coding, Entry, and Cheeking
KW  - Data File Management
ER  -