Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

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