Hawley, Ralph Chipman. Manual of forestry for the Northeasterb United States - 2 ed. - New York : Wiley, 1925 - 281 p. : ilus. Ed. anteriormente como v.1 del "Forestry in New England" LCCN: 12674 Subjects--Topical Terms: Bosques--E.U.A. Dewey Class. No.: 634.9 / H38