000
00263nam a2200109Ia 4500
008
211214s9999 xx 000 0 und d
100
_a
Kaur, Kanwaljit
245
_a
Modern Approach to Teaching of Science
260
_b
Tandon
_c
1900
300
_a
358
942
_c
BK
999
_c
52637
_d
52637