La qualité des eaux de surface au Canada
Subtitle: un aperçu
By: Pêches et environnement Canada, Direction générale des eaux intérieures, Direction de la qualité des eaux.
Publisher: La Direction de la qualité des eaux
Published: 1977
Place of publication: Ottawa
Language: fre
Number of pages: 49
Subjects: Water quality -- Canada.
Notes: Includes bibliographical references.
Includes summary in English.