Fimlstrip and slide projectors in teaching and training
| मुख्य लेखक: | |
|---|---|
| स्वरूप: | पुस्तक |
| भाषा: | English |
| प्रकाशित: |
London
National Committee for Audio-Visual Aids in Education, Educational Foundation for Visual Aids
[1971].
|
| विषय: |