Roth, Charles Edmund, 1934- The wildlife observer's guidebook / Charles E. Roth. - Englewood Cliffs, N.J. : Prentice-Hall, c1982. - xiii, 239 p. : ill. ; 24 cm. - PHalarope books . Includes index. "A Spectrum book." Bibliography: p. 228-234. ISBN: 0139595368 0139595287 (pbk.) Subjects--Topical Terms: Wildlife watching. LC Class. No.: QL60 / .R67 1982 Dewey Class. No.: 590/.72