Structure and function of Northern Coniferous Forests an ecosystem study / editor T. Persson. -- Stockholm : NFR Service, 1980 - 609 p. -- (Ecological Bulletins, ISSN 0346-6868 ; 32). ISBN 91-546-0288-2 Subjects--Topical Terms: BosquesRecursos forestalesVegetación forestal Universal Decimal Class. No.: 630