Service, U. S. N. P. (1984). Draft wild and scenic river study, Porcupine river, Alaska. [Denver, Colo.] : Denver Service Center.
Chicago Style (17th ed.) CitationService, United States. National Park. Draft Wild and Scenic River Study, Porcupine River, Alaska. [Denver, Colo.] : Denver Service Center, 1984.
MLA (9th ed.) CitationService, United States. National Park. Draft Wild and Scenic River Study, Porcupine River, Alaska. [Denver, Colo.] : Denver Service Center, 1984.
Warning: These citations may not always be 100% accurate.