TY  - BOOK
AU  - Roberts,Bernard Holton
TI  - Elementary science physics and chemistry: for junior secondary classes in high schools, technical schools and technical colleges 
U1  - 530 20
PY  - 1954///
CY  - Sydney
PB  - s. n.
KW  - Physics
KW  - Juvenile literature
KW  - Chemistry
N1  - Includes index
ER  -