TY  - BOOK
AU  - Leedy, Paul D.
AU  - Ormrod, Jeanne Ellis
TI  - Practical research : planning and design
SN  - 0131365665
PY  - 2009///
CY  - Upper Saddle River, N.J.; Harlow
PB  - Pearson Education
KW  - Research
ER  -