TY  - BOOK
AU  - Hedrick, Terry Elizabeth
AU  - Leonard, Bickman 
ED  - Debra, J. Rog 
TI  - Applied research design: A practical guide 
SN  - 0803932340
U1  - 300.72 22
PY  - 1993///
CY  - Newbury Park : 
PB  - Sage Publ
KW  - Social sciences
ER  -