TY  - BOOK
AU  - Leedy,Paul D
TI  - Practical research: : Planning and design
SN  - 0-02-369230-8
PY  - 1980///
CY  - New York: 
PB  - Macmillan Publishing Co., Inc., 
KW  - Research methodology
KW  - Research report
KW  - Historical method
ER  -