Παραπομπή σε μορφή APA (7η εκδ.)

Bielefeld, B., & Wurfele, F. (2005). Building projects in the European Union: Architectural export opportunities: a manual for architects and engineers. Birkhauser.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Bielefeld, Bert, και Falk Wurfele. Building Projects in the European Union: Architectural Export Opportunities: A Manual for Architects and Engineers. Basel: Birkhauser, 2005.

Παραπομπή σε μορφή MLA (8th εκδ.)

Bielefeld, Bert, και Falk Wurfele. Building Projects in the European Union: Architectural Export Opportunities: A Manual for Architects and Engineers. Birkhauser, 2005.