000
00309nam a2200109Ia 45e0
008
181001s1968 xx 000 0 und d
100
_a
Krause brumfiel
245
0
_a
Elementary mathematic for teachers
260
_c
1968
300
_a
425
942
_2
ddc
_c
BK
999
_c
1042
_d
1042