000
00306nam a2200133Ia 4500
020
_a
9788184972405
082
_b
1311
_a
500
245
0
_a
Inventions and discoveries
260
_b
BPI worldwide
_a
UK
_c
2012
300
_a
64
944
_c
BK
999
_c
107379
_d
107379