Murfin, James V. National parks of the U.S.A. / [electronic resource] / James V. Murfin.. — New York : : Mayflower Books,, 1980.. — 320 p. : : col. ill. ; 33 cm. ISBN: 0831763256 9780831763251 LCCN: 79090611 Subjects--Topical Terms: National parks and reserves--United States. LC Class. No.: E160 / .M953 Dewey Class. No.: 917.30492