Clarke, G. R. (1957). The study of the soil in the field Clarendon Press.
Citación estilo ChicagoClarke, George Robin. The Study of the Soil in the Field. 4th ed. Oxford: Clarendon Press, 1957.
Cita MLAClarke, George Robin. The Study of the Soil in the Field. 4th ed. Oxford: Clarendon Press, 1957.
Precaución: Estas citas no son 100% exactas.
