FAO. (2002). Training modues on conservation agriculture. Rome: Food and Agriculture Organization of the United Nations.
Παραπομπή Chicago StyleFAO. Training Modues On Conservation Agriculture. Rome: Food and Agriculture Organization of the United Nations, 2002.
Παραπομπή MLAFAO. Training Modues On Conservation Agriculture. Rome: Food and Agriculture Organization of the United Nations, 2002.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.