APA引文

Urwellen, R. H. (2009). Oil spill costs and impacts. Nova Science Publishers, Inc..

Chicago Style (17th ed.) Citation

Urwellen, Robert H. Oil Spill Costs and Impacts. New York: Nova Science Publishers, Inc., 2009.

MLA引文

Urwellen, Robert H. Oil Spill Costs and Impacts. Nova Science Publishers, Inc., 2009.