TY  - BOOK
AU  - Leedy, Paul D.
TI  - Practical Research :Planning and Design /Paul D. Leedy, Timothy J. Newby, Peggy A. Ertmer
U1  - 001.4LEE 
PY  - 1997///
CY  - New Jersey
PB  - Merrill
KW  - Research - Methodology
ER  -