Estudos silviculturais de uma populacao natural de Copaifera multijuga Hayne-leguminosae, na Amazonia Central, 2: producao de oleo-resina [copaiba, Brasil]
[Silvicultural studies of a natural population of Capaifera multijuga Hayne-leguminosae in Central Amazon, 2: oil-resin production [copaiba, Brazil]