FAO. (1989). FAO training series N.1-5: Design manual on basic wood harvesting technology: 5 cuốn đóng bộ. Rome: FAO.
Dyfyniad Arddull ChicagoFAO. FAO Training Series N.1-5: Design Manual On Basic Wood Harvesting Technology: 5 Cuốn đóng Bộ. Rome: FAO, 1989.
Dyfyniad MLAFAO. FAO Training Series N.1-5: Design Manual On Basic Wood Harvesting Technology: 5 Cuốn đóng Bộ. Rome: FAO, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.