APA (7th ed.) Zitazioa

GREGORY, S. (1968). Statirical methods and the geographer. Longmans.

Chicago Style (17th ed.) Zitazioa

GREGORY, Stanley. Statirical Methods and the Geographer. London: Longmans, 1968.

MLA (9th ed.) Zitazioa

GREGORY, Stanley. Statirical Methods and the Geographer. Longmans, 1968.