TY  - BOOK
AU  - Landsheere,Gilbert de
ED  -  Unesco. International Bureau of Education.
TI  - Empirical research in education / 
SN  - 9231020234 (pbk.)
U1  - 370 
PY  - 1982///
CY  - Paris : 
PB  - UNESCO, 
KW  - Education
KW  - Research
KW  - Experimental methods
N1  -  "Prepared for the International Bureau of Education.";  Includes bibliographical references
ER  -