APA (7th ed.) Zitazioa

Blaikie, P. (1985). The Political economy of soil erosion in developing countries. Longman development.

Chicago Style (17th ed.) Zitazioa

Blaikie, Piers. The Political Economy of Soil Erosion in Developing Countries. New york: Longman development, 1985.

MLA (9th ed.) Zitazioa

Blaikie, Piers. The Political Economy of Soil Erosion in Developing Countries. Longman development, 1985.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.