000 00631cam a2200217 4500
001 2660611
005 20130515020333.0
008 720928s1972 nyua b 000 0 eng
010 _a 72075617
020 _a817040307
040 _aDLC
_cDLC
_dDLC
050 _aLB1028. 3
_b.B54 1972
100 1 _aRAO USHA
245 0 0 _aEducational technology;
260 _aDHELI
_bBOMBAY
_c[1991]
300 _a300 p.
_billus.
_c25 cm.
504 _aBibliography: p. 264-270.
650 0 _aEducational technology.
_96065
906 _a7
_bcbc
_corignew
_d2
_eopcn
_f19
_gy-gencatlg
942 _2lcc
_cBK
_hLB1028.3.B54 1972
999 _c65083
_d65083