000
00256nam a2200109Ia 4500
008
230512s9999 xx 000 0 und d
100
_a
a.k. sahni
245
0
_a
problems of retarded children
260
_c
1972
_b
PTA ,india
650
_a
education
942
_c
BK
999
_c
490
_d
490