Protecting the environment: issues and choices- Canadian perspectives 
edited by O.P. Dwivedi 
 - Toronto  Copp Clark  1974 
 - 339p 
<br/><br/><label>ISBN: </label>0 7730 3703 9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment-Canada.
<br/><br/><label>Dewey Class. No.: </label>O91x71 D969