Basic electricity [video cassette] : direct current.
Basic electricity [video cassette] : direct current.
- England Audio Visual Source 19--.
- 4 video cassettes sd. col. 1/2 in. 1 program activity sheets (PAS)
Format: VHS/NTSC
Electric current, Direct
Electric engineering
Electronics
612.31912 BAS 19--
Format: VHS/NTSC
Electric current, Direct
Electric engineering
Electronics
612.31912 BAS 19--