00000nam 2200000za 4500 9.867635 CaOODSP 20241203113645 cr ||||||||||| 190125s1976 bccb #o||||f00| 0|eng d CaOODSP eng n-cn-bc En40-229/76-1E-PDF Derksen, George, 1948- A Biological assessment of five streams in Glacier and Yoho National Parks, British Columbia, with regards to domestic sewage discharge [electronic resource] / by George Derksen and Bryan Kelso. Vancouver : Environmental Protection Service, Pacific Region, 1976. v, 28 p. : maps. Manuscript report ; 76-1 Digitized edition from print [produced by Environment and Climate Change Canada]. "May, 1976." Includes bibliographical references. gccst Water quality Kelso, B. W. (Bryan William), 1937- Canada. Environment Canada. Canada. Environmental Protection Service. Pacific Region. Regional manuscript report (Canada. Environmental Protection Service) 76-1 (CaOODSP)9.867528 PDF 1.29 MB https://publications.gc.ca/collections/collection_2019/eccc/En40-229-76-1-eng.pdf