Educational Foundation for Visual Aids /
Butler, H. C.
Educational Foundation for Visual Aids / H. C. Butler. - London : National Committee for Audio-Visual Aids in Education, 1966. - 40 p. : ill. ; 21 cm. - Experimental development unit report ; No. 5. . - Experimental development unit report ; No. 5. .
Moving--pictures in education.
Educational Foundation for Visual Aids / H. C. Butler. - London : National Committee for Audio-Visual Aids in Education, 1966. - 40 p. : ill. ; 21 cm. - Experimental development unit report ; No. 5. . - Experimental development unit report ; No. 5. .
Moving--pictures in education.
