Dyfyniad APA

Rogers, R. G., & Gumuchdjian, P. (1998). Cities for a small planet. Westview.

Dyfyniad Arddull Chicago

Rogers, Richard George, and Philip Gumuchdjian. Cities for a Small Planet. Boulder, Colo.: Westview, 1998.

Dyfyniad MLA

Rogers, Richard George, and Philip Gumuchdjian. Cities for a Small Planet. Westview, 1998.

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