Cita APA (7th ed.)

Borgdorf, U. (2003). Software-Tankstelle Internet. TypeWare Computing.

Cita Chicago (17th ed.)

Borgdorf, Ulrich. Software-Tankstelle Internet. Emden: TypeWare Computing, 2003.

Cita MLA (8th ed.)

Borgdorf, Ulrich. Software-Tankstelle Internet. TypeWare Computing, 2003.