APA aipamena

Santos, G. (2004). Road pricing: Theory and evidence. Elsevier.

Chicago Style aipamena

Santos, G. Road Pricing: Theory and Evidence. Elsevier, 2004.

MLA aipamena

Santos, G. Road Pricing: Theory and Evidence. Elsevier, 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.