Lal R, Blum W H, Valentine C, & Stewart B A. (2014). Methods for assessment of soil degradation. CRC Press.
Chicago Edition CitationLal R, Blum W H, Valentine C, and Stewart B A. Methods for Assessment of Soil Degradation. New York: CRC Press, 2014.
MLA Edition CitationLal R, et al. Methods for Assessment of Soil Degradation. CRC Press, 2014.
Warning: These citations may not always be 100% accurate.