00000nam 2200000zi 4500 9.927437 CaOODSP 20241203113656 m o d f cr mn||||||||| 230918t19901990oncab ob f000 0 eng d 0662181557 (print) CaOODSP eng rda CaOODSP nl----- n-cn-qu En40-394/1990E-PDF En40-394/1990E Clean waters : toward a healthy Great Lakes-St. Lawrence ecosystem. [Ottawa] : Government of Canada = Gouvernement du Canada, [1990] ©1990 1 online resource (23 pages) : illustrations (some colour), map text txt rdacontent computer c rdamedia online resource cr rdacarrier Issued also in French under title: Des eaux pures : vers l'assainissement de l'écosystème des Grands Lacs et du Saint-Laurent. Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (page 23). Water quality management Great Lakes (North America) Water quality management Saint Lawrence River. Water Pollution Great Lakes (North America) Prevention. Water Pollution Saint Lawrence River Prevention. Canada. Environment Canada, issuing body. Des eaux pures : (CaOODSP)9.927441 Clean waters: toward a healthy Great Lakes-St. Lawrence ecosystem (CaOODSP)9.644966 PDF 17.08 MB https://publications.gc.ca/collections/collection_2023/eccc/en40/En40-394-1990-eng.pdf