Dyfyniad APA

Birch, E. L., & Wachter, S. M. (2011). Global urbanization. University of Pennsylvania Press.

Dyfyniad Arddull Chicago

Birch, Eugenie Ladner, and Susan M. Wachter. Global Urbanization. Philadelphia: University of Pennsylvania Press, 2011.

Dyfyniad MLA

Birch, Eugenie Ladner, and Susan M. Wachter. Global Urbanization. University of Pennsylvania Press, 2011.

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