TY  - BOOK
ED  - National Geographic Society
TI  - Waves, sound, and light
SN  - 0078256313
PY  - 2002///
CY  - New York
PB  - Glencoe/ McGraw-Hill
KW  - Waves
KW  - Sound
KW  - Light
N1  - Includes glossary and index
ER  -