Gaya APA
Böhringer, C., Lange, A. (2005).
Applied Research in Environmental Economics (1st ed.).
Verlag, Heidelberg:
Physica-Verlag.
Gaya MLA
Böhringer, Christoph.., Lange, Andreas..
"Applied Research in Environmental Economics".
1st ed.
Verlag, Heidelberg:
Physica-Verlag,
2005.
E Book.