00000nam 2200000za 4500 9.571513 CaOODSP 20220825092312 cr ||||||||||| 150406|1999||||xxc|||||o f|0| 0 eng d CaOODSP eng n-cn--- En153-97/1999-4-1E-PDF St. Lawrence Centre. The contribution of agricultural activities to the deterioration of the St. Lawrence River [electronic resource] Montreal - Quebec : Environment Canada. 1999. 16p. coloured map, tables, photographs Issue - state of the St. Lawrence River The catalogue number (En153-97/1999-4-1E) and ISBN (0-662-26671-4) for the print edition have been incorrectly copied in this electronic publication. Bibliography. 11-17-Supp 2011-09-12 Water pollution gcpds Agriculture gcpds Rivers gcpds La contribution des activités agricoles à la détérioration du Saint-Laurent (CaOODSP)9.602105 The contribution of agricultural activities to the deterioration of the St. Lawrence River (CaOODSP)9.614336 Issue - state of the St. Lawrence River. (CaOODSP)9.506479 http://publications.gc.ca PDF 693 KB https://publications.gc.ca/collections/Collection/En153-97-1999-4-1E.pdf