Gaya APA

Kolthoff, . (1952). The colorimetric and potentiometric determination of ph. Electro titrations (2). New York: John Wiley & Sons, Inc..

Gaya MLA

Kolthoff, . "The colorimetric and potentiometric determination of ph. Electro titrations". 2 New York: John Wiley & Sons, Inc., 1952. Text.