Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service) & Petkov, V. (2007). Relativity and the Dimensionality of the World. Springer Netherlands.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service) και Vesselin Petkov. Relativity and the Dimensionality of the World. Dordrecht: Springer Netherlands, 2007.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service) και Vesselin Petkov. Relativity and the Dimensionality of the World. Springer Netherlands, 2007.