TY  - BOOK
ED  - Mayer, Victor J.
TI  - Activity sourcebook for earth science
T2  - Science education information report
U1  - 550 
PY  - 1980///
CY  - Ohio
PB  - ERIC Clearinghouse for Science,Mathematics and Environmental Education
KW  - Earth science-Study and teaching
KW  - Science-Study and teaching
KW  - Science education
ER  -