TY  - BOOK
AU  - Ader, Herman J
AU  - Mellenbergh, Gideon J. eds.
TI  - Research methodology in the social, behavioural and life sciences
SN  - 0761958835
PY  - 1999///
CY  - London
PB  - Sage Publications
KW  - Research-methods
KW  - Social Sciences Research-methods-handbooks
ER  -