Otis, Charles Herbert, 1886- Michigan trees; a handbook of the native and most important introduced species. - Ann Arbor, The Regents, 1913. - xxxii, 246 p. front., illus. (incl. map) 19 cm. LCCN: 13007633 Subjects--Topical Terms: Trees--Michigan. LC Class. No.: QK484 / .M507