APA Style

Van Harpen, N.H.. (1930). The Electrometric Determination of the Hydrogen ion Concentration in the Latex of Hevea Brasiliensis and Its Applicability to Technical Problems . Utrecht: Tech. Hoogeschool.

Chicago Style

Van Harpen, N.H.. The Electrometric Determination of the Hydrogen ion Concentration in the Latex of Hevea Brasiliensis and Its Applicability to Technical Problems. Utrecht: Tech. Hoogeschool, 1930. Hard Copy.

MLA Style

Van Harpen, N.H.. The Electrometric Determination of the Hydrogen ion Concentration in the Latex of Hevea Brasiliensis and Its Applicability to Technical Problems. Utrecht: Tech. Hoogeschool, 1930. Hard Copy.

Turabian Style

Van Harpen, N.H.. The Electrometric Determination of the Hydrogen ion Concentration in the Latex of Hevea Brasiliensis and Its Applicability to Technical Problems. Utrecht: Tech. Hoogeschool, 1930. Hard Copy.