TY  - BOOK
AU  - Helfferich, Friedrich
TI  - Ion exchange
T2  - McGraw Hill series in advanced chemistry
U1  - 541.3723 21st ed.
PY  - 1962///
CY  - New York
PB  - McGraw-Hill Book Company
KW  - Electrochemistry
KW  - Ion exchange
ER  -