Ngā kupu hautoa kōpae
Tohutoro APA (7th ed.)
United Nations Environment Programme, Water Supply and Sanitation Collaborative Council, World Health Organization, ebrary, Inc, Helmer, R., & Hespanhol, I. (1997). Water pollution control: A guide to the use of water quality management principles. E & FN Spon.
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Kua rahua te tārua ki te papatopenga
Tohutoru Kātū Chicago (17th ed.)
United Nations Environment Programme, Water Supply and Sanitation Collaborative Council, World Health Organization, Inc ebrary, Richard Helmer, me Ivanildo Hespanhol. Water Pollution Control: A Guide to the Use of Water Quality Management Principles. London ; New York: E & FN Spon, 1997.
I tāruatia paitia ki te papatopenga
Kua rahua te tārua ki te papatopenga
Tohutoro MLA (9th ed.)
United Nations Environment Programme, et al. Water Pollution Control: A Guide to the Use of Water Quality Management Principles. E & FN Spon, 1997.
I tāruatia paitia ki te papatopenga
Kua rahua te tārua ki te papatopenga
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