TY  - GEN
AU  - Leedy, Paul D.
TI  - Practical research: planning and design 
SN  - 0023692421
AV  - Q180.55M4 L44 1993
PY  - 1993///
CY  - New Jersey
PB  - Prentice Hall, 
N1  - Includes bibliographical reference and index
ER  -