APA (7th ed.) Citation

Smith, W. R. (1925). Aniakchak Crater, Alaska Peninsula. U.S. G.P.O..

Chicago Style (17th ed.) Citation

Smith, Walter R. Aniakchak Crater, Alaska Peninsula. Washington, D.C.: U.S. G.P.O., 1925.

MLA (9th ed.) Citation

Smith, Walter R. Aniakchak Crater, Alaska Peninsula. U.S. G.P.O., 1925.