APA (7th ed.) Citation

Ashman, M., & Puri, G. (2002). Essential soil science: A clear and concise introduction to soil science: M. R. Ashman. Blackwell.

Chicago Style (17th ed.) Citation

Ashman, M.R, and G. Puri. Essential Soil Science: A Clear and Concise Introduction to Soil Science: M. R. Ashman. Madlen: Blackwell, 2002.

MLA (8th ed.) Citation

Ashman, M.R, and G. Puri. Essential Soil Science: A Clear and Concise Introduction to Soil Science: M. R. Ashman. Blackwell, 2002.