Citazione Stile APA (7a Edizione)

Richter, D. D. Understanding soil change: Soil sustainability over millennia, centuries, and decades. Cambridge.

Citazione stile Chigago Style (17a edizione)

Richter, Daniel D. Understanding Soil Change: Soil Sustainability over Millennia, Centuries, and Decades. c2001: Cambridge.

Citatione MLA (9a ed.)

Richter, Daniel D. Understanding Soil Change: Soil Sustainability over Millennia, Centuries, and Decades. Cambridge.