Salomon, Dale S. The influence of stand density and structure on growth of northern hardwoods in New England - Upper Darby, Pa : Northeas tern Forest Experiment Station, 1977 - 13 p. - Research paper ; NE-362 . - Research paper ; NE-362 . 36-135 Enc. con otros impresos similares LCCN: 422 Subjects--Topical Terms: Árboles--Espaciamiento.Madera dura--Crecimiento.