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HARPEN, N.H. VAN, - The electrometric determination of the hydrogen ion concentration in the latex of hevea brasiliensis and its applicability to technical problems.

Medan, Varekamp, 1930. Large 8vo. 459+(4) pp. With ills. Bibliogr. Softcover. Or.wrp.(sl.stained/browned). Good. ¶ Thesis Technische Hoogeschool Bandoeng.
EUR 30.00 [Appr.: US$ 34.75 | £UK 26.25 | JP¥ 5144] Book number 15772

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