APA aipamena

(2006). World reference base for soil resources 2006: A framework for international classification, correlation and communication. Rome: FAO.

Chicago Style aipamena

World Reference Base for Soil Resources 2006: A Framework for International Classification, Correlation and Communication. Rome: FAO, 2006.

MLA aipamena

World Reference Base for Soil Resources 2006: A Framework for International Classification, Correlation and Communication. Rome: FAO, 2006.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.