000
00250nam a2200109Ia 4500
100
_a
Askwith EH
245
_a
Analytical Geometry of the Conic Srctions
250
_a
3rd
260
_c
1957
_a
London
_b
Adam & Charles Black
300
_a
xii+443
942
_c
BK
999
_c
315
_d
315