VERNON, H. (1998). Business and society: A managerial approach.-- ed.6. McGraw Hill.
Lua i Stíl Chicago (17ú heag.)VERNON, Heidi. Business and Society: A Managerial Approach.-- Ed.6. New York: McGraw Hill, 1998.
Lua MLA (9ú heag.)VERNON, Heidi. Business and Society: A Managerial Approach.-- Ed.6. McGraw Hill, 1998.
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