TY  - BOOK
AU  - Leedy,Paul D.
AU  - Ormrod,Jeanne Ellis
TI  - Practical research: planning and design 
SN  - 978129021171
PY  - 2014///
CY  - Harlow, Essex
PB  - Pearson Education
KW  - Research
KW  - Methodology
N1  - Includes bibliographical references and index
ER  -