Food and Agriculture Organization of the United Nations. (1962). Forest influences: An introduction to ecological forestry. FAO.
Dyfyniad Arddull ChicagoFood and Agriculture Organization of the United Nations. Forest Influences: An Introduction to Ecological Forestry. Rome: FAO, 1962.
Dyfyniad MLAFood and Agriculture Organization of the United Nations. Forest Influences: An Introduction to Ecological Forestry. FAO, 1962.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.