Little, Elbert L Atlas of United States trees - Washington, D.C.: United States Government Printing Office, 1977 Vol. 3 (Minor western hardwoods) ; vi, 13p.Vol. 4 ( Minor eastern hardwoods) ; v, 17p. Subjects--Topical Terms: Agriculture Subjects--Index Terms: Trees Maps Universal Decimal Class. No.: 634(73) / L7.4