000 00512nam a2200217Ia 4500
008 140520s9999||||xx |||||||||||||| ||und||
020 _a9231014234
082 _a371.1
082 _bUnesco
245 4 _aThe Economics Of New Educational Media : Present Status Of Research And Trends
260 _aParis
260 _bUnesco
260 _c1977
300 _a200
300 _bpb
300 _c6x9.5
350 _a0
365 _b0
365 _dRuppes
440 _aEducational Methods And Techniques
999 _c59969
_d59969