TY  - BOOK
AU  - Terry E Hedrick 
AU  - Debra J Rog 
AU  - Leonard Bickman 
TI  - Applied research design: a practical guide
SN  - 9780803932340
U1  - 300.72 
PY  - 1993///
CY  - California
PB  - Sage
KW  - Research Methodology Social Sciences
KW  - Social Sciences
ER  -