A report on 16mm sound film projectors.
Educational Foundation for Visual Aids (Great Britain). Experimental Development Unit.
A report on 16mm sound film projectors. - London Educational Foundation for Visual Aids National Committee for Audio-Visual Aids in Education, 1970. - 30p 20cm - Report, 7. .
Motion picture projectors.
681.13 E24r
A report on 16mm sound film projectors. - London Educational Foundation for Visual Aids National Committee for Audio-Visual Aids in Education, 1970. - 30p 20cm - Report, 7. .
Motion picture projectors.
681.13 E24r