Gaya APA

Lammersen, L., Schwager, R. (2005). The Effective Tax Burden of Companies in European Regions (1st ed.). Verlag, Heidelberg: Physica-Verlag.

Gaya MLA

Lammersen, Lothar.., Schwager, Robert.. "The Effective Tax Burden of Companies in European Regions". 1st ed. Verlag, Heidelberg: Physica-Verlag, 2005. E Book.