Dyfyniad APA
ebrary, Inc, Gaquin, D., & DeBrandt, K. A. (2004). 2004 county and city extra: Annual metro, city, and county data book (12th ed.). Bernan Press.
Dyfyniad Arddull Chicago
ebrary, Inc, Deirdre Gaquin, and Katherine A. DeBrandt. 2004 County and City Extra: Annual Metro, City, and County Data Book. 12th ed. Landham, MD: Bernan Press, 2004.
Dyfyniad MLA
ebrary, Inc, et al. 2004 County and City Extra: Annual Metro, City, and County Data Book. 12th ed. Bernan Press, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.