APA (7th ed.) Citation

Rich, P. E., & Tussing, A. R. (1973). The national park system in Alaska: An economic impact study. Univ. of Alaska.

Chicago Style (17th ed.) Citation

Rich, Pamela E., and Arlon R. Tussing. The National Park System in Alaska: An Economic Impact Study. College, Alaska: Univ. of Alaska, 1973.

MLA (9th ed.) Citation

Rich, Pamela E., and Arlon R. Tussing. The National Park System in Alaska: An Economic Impact Study. Univ. of Alaska, 1973.