Dyfyniad APA

Gilbert, R., & Perl, A. (2010). Transport revolutions: Moving people and freight without oil (Rev. and updated ed.). New Society Pub.

Dyfyniad Arddull Chicago

Gilbert, Richard, and Anthony Perl. Transport Revolutions: Moving People and Freight Without Oil. Rev. and updated ed. Canada: New Society Pub, 2010.

Dyfyniad MLA

Gilbert, Richard, and Anthony Perl. Transport Revolutions: Moving People and Freight Without Oil. Rev. and updated ed. New Society Pub, 2010.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.