TY  - BOOK
AU  - Mitchell, Mark L. 
AU  - Jolley, Janina M. 
TI  - Research design explained
SN  - 0-495-09362-9.
U1  - Circ. 150.7 M682r 2007 6th ed. 
PY  - 2007///
CY  - USA
PB  - Thomson Higher Education, 
KW  - Psychology-Research-Methodology
N1  - Includes bibliographical references
ER  -