Work and energy.
Work and energy.
- Evanston, IL : AGC Educational Media/United Learning, 1991.
- 1 videodisc (VCD) ( 10 min) : sd., col. ; 4 3/4 in.
English
VCD
Force and energy
531.6 W89 c1991
English
VCD
Force and energy
531.6 W89 c1991