La Motte Chemical Products Company. (1934). Colorimetric determination of pH (hydrogen ion concentration) and for water analysis (10th ed.). LaMotte Chemical Products Company.
Παραπομπή σε μορφή Chicago (17η εκδ.)La Motte Chemical Products Company. Colorimetric Determination of PH (hydrogen Ion Concentration) and for Water Analysis. 10th ed. Baltimore: LaMotte Chemical Products Company, 1934.
Παραπομπή σε μορφή MLA (8th εκδ.)La Motte Chemical Products Company. Colorimetric Determination of PH (hydrogen Ion Concentration) and for Water Analysis. 10th ed. LaMotte Chemical Products Company, 1934.
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