TY  - SOUND
TI  - The video encyclopedia of physics demonstrations
PY  - 2003///
CY  - [S.l.]
PB  - The Education Group
N2  - Very,very nice collections of physics demonstrations on laser disc
UR  - http://www.amazon.com/exec/obidos/ASIN/B000V60C9C/chopaconline-20
ER  -