Harrison, George H. Roger Tory Peterson's dozen birding hot spots by George H. Harrison ; maps and visitor tips by Kit Harrison. - New York : Simon and Schuster, c1976. - 288 p. ISBN: 0671223291 0671254057 (pbk.) Subjects--Topical Terms: Birds--United States.Bird watching—United States. Dewey Class. No.: Cir 598.2073 H146 1976