00000nas 2200000zi 4500 9.893396 CaOODSP 20221107173432 m o d f cr ||||||||||| 201109d19741977onc x m o f0###|0eng|d CaOODSP eng rda CaOODSP eng fre n-cn--- En102-2E-PDF En102-2-PDF Canada. Environment Canada. Office of the Science Advisor, issuing body. Report - Office of the Science Advisor. Ottawa : Environment Canada, 1974-1977. Irregular text txt rdacontent computer c rdamedia online resource cr rdacarrier Numbers 10-14; 1974-1977. Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. Number 11 not published. Some numbers include abstract in French; no. 13 text in English and French. Environmental policy Research Canada. Environnement Politique gouvernementale Recherche Canada.