Return to footnote Refers to the publication Standard Methods for the Examination of Water and Waste Water, 13th edition, (1971), published jointly by the American Public Health Association, American Water Works Association and the Water Pollution Control Federation.
Retour à la référence de la note de bas de page Renvoie aux Standard Methods for the Examination of Water and Waste Water, 13 édition (1971), publié conjointement par l’American Public Health Association, l’American Water Works Association et la Water Pollution Control Federation.