000
00295nam a2200109Ia 4500
001
23117
008
170722s9999 xx 000 0 und d
100
_a
Helffrich, Friedrich
245
_a
Ion exchange. 1962. /
490
_a
McGraw-Hill series in advanced chemistry ed by David Hune
942
_c
GEN
999
_c
59697
_d
59697