Troeh, F. R. (2005). Soils and soil fertility. Oxford: Blackwell.
Trích dẫn kiểu ChicagoTroeh, Frederick R. Soils and Soil Fertility. Oxford: Blackwell, 2005.
MLA引文Troeh, Frederick R. Soils and Soil Fertility. Oxford: Blackwell, 2005.
警告：這些引文格式不一定是100％准確.