Bertram Husch. (1987). FAO forestry paper N.81: Guidelines for forest policy formulation. Rome: FAO.
Dyfyniad Arddull ChicagoBertram Husch. FAO Forestry Paper N.81: Guidelines for Forest Policy Formulation. Rome: FAO, 1987.
Dyfyniad MLABertram Husch. FAO Forestry Paper N.81: Guidelines for Forest Policy Formulation. Rome: FAO, 1987.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.