Imlay, R. W. (1981). Jurassic (Bathonian and Callovian) ammonites in eastern Oregon and western Idaho: The late Bathonian to middle Callovian ammonite succession in eastern Oregon is remarkably similar to that in southern Alaska. U.S. Gov. Print. Off.
Chicago Style (17th ed.) CitationImlay, Ralph Willard. Jurassic (Bathonian and Callovian) Ammonites in Eastern Oregon and Western Idaho: The Late Bathonian to Middle Callovian Ammonite Succession in Eastern Oregon Is Remarkably Similar to That in Southern Alaska. Washington, DC: U.S. Gov. Print. Off, 1981.
MLA (9th ed.) CitationImlay, Ralph Willard. Jurassic (Bathonian and Callovian) Ammonites in Eastern Oregon and Western Idaho: The Late Bathonian to Middle Callovian Ammonite Succession in Eastern Oregon Is Remarkably Similar to That in Southern Alaska. U.S. Gov. Print. Off, 1981.