Papers presented at the fifth session of the North American forestry commission - Ottawa, Canada, 15-20 Sep 1969.

agricultural sector aire de loisir arbre bosques canada ciencias forestales education encuestas forestales enfermedades de las plantas faune et flore sauvages forest fires forest inventories forest management forest products industry forest protection forest surveys foresterie forestry forestry policies forests gestion incendios forestales industria forestal insecte nuisible inventaire forestier inventarios forestales maladie des plantes management mejoramiento del rodal methode methods mexico multiple use forestry pest insects plant diseases recreational areas secteur agricole sector agrario silvicultura silviculture stand improvement sylviculture trees usa uses uso multiple del bosque usos utilisation vida silvestre wildlife zonas recreativas