000
00251nam a22001097a 4500
999
_c
4919
_d
4919
082
_a
510
_b
PET
100
_a
Petrie.P.A
245
_a
Intermediate Mathematics
_c
Petrie.P.A
260
_b
The Copp Clark Publishing Co,Limited
300
_a
310p.
942
_c
L