Miller, G. A. (1987). Historical aspects of soil survey and soil classification. Estados Unidos de América: American Society of Agronomy.
Chicago Style CitationMiller, Gerald A.. Historical Aspects of Soil Survey and Soil Classification. Estados Unidos de América: American Society of Agronomy, 1987.
MLA CitationMiller, Gerald A.. Historical Aspects of Soil Survey and Soil Classification. Estados Unidos de América: American Society of Agronomy, 1987.
Warning: These citations may not always be 100% accurate.