Dyfyniad APA

National Association of City Transportation Officials. (2013). Urban Street Design Guide. Island Press.

Dyfyniad Arddull Chicago

National Association of City Transportation Officials. Urban Street Design Guide. New York: Island Press, 2013.

Dyfyniad MLA

National Association of City Transportation Officials. Urban Street Design Guide. Island Press, 2013.

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