000
00268nam a2200121Ia 4500
008
230512s9999 xx 000 0 und d
100
_a
a.k. sahni
245
0
_a
discipline of children
260
_c
1972
_b
PTA ,india
300
_a
79
650
_a
education
942
_c
BK
999
_c
491
_d
491