Smithe, Frank B. The birds of Tikal [by] Frank B. Smithe. - [1st ed.] - Garden City, N.Y., Published for the American Museum of Natural History [by] the Natural History Press, 1966. - xxix, 350 p. illus. (part col.), fold. maps. 20 cm. Bibliography: p. [334]-339. LCCN: 66017459 Subjects--Topical Terms: Birds--Identification.--Guatemala--Tikal LC Class. No.: QL687 / .S55 Dewey Class. No.: 598.297281