FitzPatrick, E. A. (1986). An introduction to soil science (ed. 2.). Longman Scientific & Technical ; Wiley.
Lua i Stíl Chicago (17ú heag.)FitzPatrick, Ewart Adsil. An Introduction to Soil Science. ed. 2. Essex, England : New York, N.Y.: Longman Scientific & Technical ; Wiley, 1986.
Lua MLA (9ú heag.)FitzPatrick, Ewart Adsil. An Introduction to Soil Science. ed. 2. Longman Scientific & Technical ; Wiley, 1986.