Ashman, M. R., & Puri, G. (2006). Essential soil science: A clear and concise introduction to soil science (1., publ., 5. reprint.). Blackwell Science.
Chicago Style (17th ed.) CitationAshman, Mark R., and Geeta Puri. Essential Soil Science: A Clear and Concise Introduction to Soil Science. 1., publ., 5. reprint. Oxford [u.a.]: Blackwell Science, 2006.
MLA (9th ed.) CitationAshman, Mark R., and Geeta Puri. Essential Soil Science: A Clear and Concise Introduction to Soil Science. 1., publ., 5. reprint. Blackwell Science, 2006.
Warning: These citations may not always be 100% accurate.