APA (7th ed.) Citation

Imlay, R. W. (1973). Middle Jurassic (Bajocian) ammonites from eastern Oregon: Bajocian ammonites of eastern Oregon greatly resemble those of Alaska and Europe, indicate marine connections with Europe, and permit accurate zonal dating in the Pacific Coast region. United States Gov. Print. Off.

Chicago Style (17th ed.) Citation

Imlay, Ralph Willard. Middle Jurassic (Bajocian) Ammonites from Eastern Oregon: Bajocian Ammonites of Eastern Oregon Greatly Resemble Those of Alaska and Europe, Indicate Marine Connections with Europe, and Permit Accurate Zonal Dating in the Pacific Coast Region. Washington, DC: United States Gov. Print. Off, 1973.

MLA (9th ed.) Citation

Imlay, Ralph Willard. Middle Jurassic (Bajocian) Ammonites from Eastern Oregon: Bajocian Ammonites of Eastern Oregon Greatly Resemble Those of Alaska and Europe, Indicate Marine Connections with Europe, and Permit Accurate Zonal Dating in the Pacific Coast Region. United States Gov. Print. Off, 1973.