APA (7th ed.) Citation

Helfferich, F. G. (1995). Ion exchange (Dover ed.). Dover Publications.

Chicago Style (17th ed.) Citation

Helfferich, Friedrich G. Ion Exchange. Dover ed. New York: Dover Publications, 1995.

MLA (8th ed.) Citation

Helfferich, Friedrich G. Ion Exchange. Dover ed. Dover Publications, 1995.

Warning: These citations may not always be 100% accurate.