TY  - BOOK
AU  - Leedy,Paul D.
AU  - Ormrod,Jeanne Ellis
TI  - Practical research : : planning and design 
SN  - 9780137152421
U1  - 001.4 
PY  - 2010///
CY  - Upper Saddle River, NJ
PB  - Merrill
KW  - Research
ER  -