Harman, Wyatte L. Textbook of dendrology, convering the important forest tress of the United States and Canada - 4 ed. - New York : McGraw-Hill, 1958 - 561 p. : ilus. LCCN: 73788 Subjects--Topical Terms: Árboles--E.U.A.Madera--Tecnología. Dewey Class. No.: 634.97 / H34