Richter, D. D. Understanding soil change: Soil sustainability over millennia, centuries, and decades. Cambridge.
Čikaški stil citiranja (17. izdanje)Richter, Daniel D. Understanding Soil Change: Soil Sustainability over Millennia, Centuries, and Decades. c2001: Cambridge.
MLA način citiranja (9. izdanje)Richter, Daniel D. Understanding Soil Change: Soil Sustainability over Millennia, Centuries, and Decades. Cambridge.
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