Courtney, F. (1976). The soil : an introduction to soil: Study. Hodder and Stoughton.
Čikaški stil citiranja (17. izdanje)Courtney, F.M. The Soil : An Introduction to Soil: Study. London: Hodder and Stoughton, 1976.
MLA način citiranja (9. izdanje)Courtney, F.M. The Soil : An Introduction to Soil: Study. Hodder and Stoughton, 1976.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.