000 nam a22 7a 4500
999 _c7521
_d7521
008 170920b xxu||||| |||| 00| 0 eng d
020 _a0716660040
100 _aWorld Book
_94046
245 _aScience at work
250 _aVolume 9
260 _aWales
_bWorld Book House
_c1987