ASTM Internacional. Standard test method for On-line pH Measurement of water of low conductivity. ASTM.
Chicago Style (17th ed.) CitationASTM Internacional. Standard Test Method for On-line PH Measurement of Water of Low Conductivity. United States: ASTM.
MLA (9th ed.) CitationASTM Internacional. Standard Test Method for On-line PH Measurement of Water of Low Conductivity. ASTM.
Warning: These citations may not always be 100% accurate.