TY  - BOOK
AU  - Leedy,Paul D.
TI  - Practical research: planning and design 
SN  - 0023692308
AV  - Q180.55.M4 L43 1980
U1  - 001.4/2 LEE 1980 19
PY  - 1980///
CY  - New York
PB  - Macmillan
KW  - Research
KW  - Methodology
N1  - Includes index; Bibliography: p. 203-207
ER  -