000
00304nam a2200133Ia 4500
005
20250612122151.0
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250601s1999 xx 000 0 eng d
020
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8187317427
100
_a
V K Rao
245
0
_a
Trends In Education
260
_a
delhi
_b
Rajat Pub.
_c
1999
300
_a
962
942
_2
ddc
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BK
999
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487
_d
487