Cita APA (7a ed.)

Ziervogel, R., & Lang, P. (2008). OT Index: 3D / Ralf Ziervogel. [Text: Peter Lang].

Cita Chicago Style (17a ed.)

Ziervogel, Ralf, y Peter Lang. OT Index: 3D / Ralf Ziervogel. [Text: Peter Lang]. [S.l.], 2008.

Cita MLA (8a ed.)

Ziervogel, Ralf, y Peter Lang. OT Index: 3D / Ralf Ziervogel. [Text: Peter Lang]. 2008.