FAO. (2005). Methods and materials in soil conservation. Rome: Food and Agriculture Organization of the United Nations.
Chicago ZitierstilFAO. Methods and Materials in Soil Conservation. Rome: Food and Agriculture Organization of the United Nations, 2005.
MLA ZitierstilFAO. Methods and Materials in Soil Conservation. Rome: Food and Agriculture Organization of the United Nations, 2005.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.