Cite
Defi du developpement durable: planifier pour le changement ou changer la planification?
MLA
Perks, William T., and Mary Ellen Tyler. “Defi Du Developpement Durable: Planifier Pour Le Changement Ou Changer La Planification?” Plan Canada, vol. 31, no. 3, May 1991, p. 6. EBSCOhost, widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edsggo&AN=edsgcl.30410954&authtype=sso&custid=ns315887.
APA
Perks, W. T., & Tyler, M. E. (1991, May 1). Defi du developpement durable: planifier pour le changement ou changer la planification? Plan Canada, 31(3), 6.
Chicago
Perks, William T., and Mary Ellen Tyler. 1991. “Defi Du Developpement Durable: Planifier Pour Le Changement Ou Changer La Planification?” Plan Canada, May 1. http://widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edsggo&AN=edsgcl.30410954&authtype=sso&custid=ns315887.