1. 04. English Audio Visual PHYSICS DEMONSTRATIONS IN MECHANICS, Part 2; Physics Curriculum & Instruction   Publication: . 1 Cassette 1/2 inch Availability: Copies available: (1), Actions:
2. 04. English Audio Visual PHYSICS DEMONSTRATIONS IN LIGHT, Part 1; Physics Curriculum & Instruction   Publication: . 1 Cassette 1/2 inch Availability: Copies available: (1), Actions:

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