Willig, J. T. (1995). Auditing for environmental quality leadership: Beyond compliance to environmental excellence. John Wiley.
Chicago-stil citatWillig, John T. Auditing for Environmental Quality Leadership: Beyond Compliance to Environmental Excellence. New York: John Wiley, 1995.
MLA-referensWillig, John T. Auditing for Environmental Quality Leadership: Beyond Compliance to Environmental Excellence. John Wiley, 1995.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.