Tohutoro APA (7th ed.)
American Water Works Association. (2014). Simplified procedures for water examination (Sixth edition.). American Water Works Association.
Tohutoru Kātū Chicago (17th ed.)
American Water Works Association. Simplified Procedures for Water Examination. Sixth edition. Denver, Colorado: American Water Works Association, 2014.
Tohutoro MLA (9th ed.)
American Water Works Association. Simplified Procedures for Water Examination. Sixth edition. American Water Works Association, 2014.
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