FITZPATRICK, E. (1983). Soil: Their formation, classification and distribution. Longman.
Chicago-referens (17:e uppl.)FITZPATRICK, E.A. Soil: Their Formation, Classification and Distribution. London: Longman, 1983.
MLA-referens (9:e uppl.)FITZPATRICK, E.A. Soil: Their Formation, Classification and Distribution. Longman, 1983.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.