TY  - BOOK
AU  - Mallinson, George.
AU  - Mallinson, Jacqueline B.
AU  - Ellwood, Esther P.
AU  - Silva, lorrane Z.
TI  - Pictures that teach: science. Teacher's manual 
U1  - 500 MAL 
PY  - 1972///
CY  - New Jersey
PB  - Silver Burdett Company
KW  - Science
ER  -