Citazione Stile APA (7a Edizione)

ebrary, Inc, Gaquin, D., & DeBrandt, K. A. (2002). County and city extra, 2002: Annual metro, city, and county data book (11th. ed.). Bernan Press.

Citazione stile Chigago Style (17a edizione)

ebrary, Inc, Deirdre Gaquin, e Katherine A. DeBrandt. County and City Extra, 2002: Annual Metro, City, and County Data Book. 11th. ed. Lanham, MD.: Bernan Press, 2002.

Citatione MLA (9a ed.)

ebrary, Inc, et al. County and City Extra, 2002: Annual Metro, City, and County Data Book. 11th. ed. Bernan Press, 2002.