TY  - BOOK
AU  - Sillars Robertson
AU  -  Goldstein Harold et. al
TI  - Audio-visual education in international and human relations : Report of a study conducted by staff members of the audio-visual laboratory of the institute of adult education teachers college, Colubmbia university
PY  - 1950///
CY  - New York, USA
PB  - Bureau of Publications 
ER  -