00000nam 2200000zi 4500 9.899972 CaOODSP 20241203113655 m o d f cr |n||||||||| 201008e19720228mbcab ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn-nt En40-1023/1972E-PDF Hatfield, C. T., author. Fish resources of the Mackenzie River Valley : interim report 1 / by C.T. Hatfield [and others]. Winnipeg, Manitoba, Canada : Environment Canada, Fisheries Service, February 28, 1972. 1 online resource (2 volumes) : illustrations, maps text txt rdacontent computer c rdamedia online resource cr rdacarrier Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. Freshwater fishes Northwest Territories Mackenzie River Valley. Pipelines Environmental aspects Northwest Territories Mackenzie River Valley. Poissons d'eau douce Territoires du Nord-Ouest Mackenzie, Vallée du. Pipelines Aspect de l'environnement Territoires du Nord-Ouest Mackenzie, Vallée du. Canada. Environment Canada, issuing body. PDF 4.50 MB https://publications.gc.ca/collections/collection_2021/eccc/en40/En40-1023-1972-1-eng.pdf (Volume 1) PDF 12.94 MB https://publications.gc.ca/collections/collection_2021/eccc/en40/En40-1023-1972-2-eng.pdf (Volume 2)