TY  - BOOK
AU  - Richmond P. E.
TI  - New trends in integrate science teaching Vol. II . Ed. by P. E.Richmond
T2  - Integrated science
SN  - 9231011146
U1  - T:3:A, L3. 2 
PY  - 1973///
CY  - Paris
PB  - Unesco France       
KW  - EDUCATION
ER  -