APA (7th ed.) Zitazioa

Phillipson, J. (1970). Methods of study in soil ecology. UNESCO.

Chicago Style (17th ed.) Zitazioa

Phillipson, J. Methods of Study in Soil Ecology. Ginebra: UNESCO, 1970.

MLA (9th ed.) Zitazioa

Phillipson, J. Methods of Study in Soil Ecology. UNESCO, 1970.