Cochran, LEE W Dekiffer, R E
Manual of audio-visual techniques - 2 - NewJerssey, Prentice -Hall Inc 1955 - 254
Non projected teaching materials/ Overhead pojectors / Central sound system/ Learning environment
371.335 DEK
100
Manual of audio-visual techniques - 2 - NewJerssey, Prentice -Hall Inc 1955 - 254
Non projected teaching materials/ Overhead pojectors / Central sound system/ Learning environment
371.335 DEK
100