000
00274nam a2200109Ia 4500
008
230515s9999||||xx |||||||||||||| ||und||
100
_a
Kontos Peter G.
_9
47063
245
0
_a
Learn About Numbers
260
_b
Modern Curriculum Press
_c
1979
300
_a
156
942
_c
BK
_p
CL
999
_c
163517
_d
163517