TY  - BOOK
ED  - Cohen, Michael R.
ED  - Flick, Larry
TI  - Expanding children's thinking through science : an occasional sourcebook of the council for elementary science
T2  - CESI sourcebook ;  no. 2
U1  - 507.1 
PY  - 1981///
CY  - Ohio
PB  - ERIC Clearinghouse for Science Mathematics & Environmental Education
ER  -