Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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

Attenzione: Queste citazioni potrebbero non essere precise al 100%.