APA (7th ed.) Zitazioa

Steen, L. A. (1997). Why numbers count: Quantitative literacy for tomorrow's america. College Entrance Examination Board.

Chicago Style (17th ed.) Zitazioa

Steen, Lynn Arthur. Why Numbers Count: Quantitative Literacy for Tomorrow's America. New York: College Entrance Examination Board, 1997.

MLA (9th ed.) Zitazioa

Steen, Lynn Arthur. Why Numbers Count: Quantitative Literacy for Tomorrow's America. College Entrance Examination Board, 1997.