000
00366nam a2200145Ia 4500
020
_a
0431076030
082
_b
184
_a
500
100
_a
"Cowton, Wendy"
245
0
_a
Changing State..............SCIENCE QUEST
260
_b
Heineman Educational Books
_a
Oxford
_c
1994
300
_a
32
944
_c
BK
999
_c
599535
_d
599535