Citazione Stile APA (7a Edizione)

BRIGGS, D. (1981). Sources and methods in geogaphy: Soils. Butterworths.

Citazione stile Chigago Style (17a edizione)

BRIGGS, David. Sources and Methods in Geogaphy: Soils. London: Butterworths, 1981.

Citatione MLA (9a ed.)

BRIGGS, David. Sources and Methods in Geogaphy: Soils. Butterworths, 1981.