Imlay, R. W. (1960). Early cretaceous (Albian) ammonites from the Chitina Valley and Talkeetna Mountains, Alaska: The early cretaceous (Albian) ammonites in southern Alaska have strong affinities with those in California and Oregon but are in part of Boreal and Eurasian origin. U.S. Gov. Print. Off.
Chicago-Zitierstil (17. Ausg.)Imlay, Ralph W. Early Cretaceous (Albian) Ammonites from the Chitina Valley and Talkeetna Mountains, Alaska: The Early Cretaceous (Albian) Ammonites in Southern Alaska Have Strong Affinities with Those in California and Oregon but Are in Part of Boreal and Eurasian Origin. Washington, DC: U.S. Gov. Print. Off, 1960.
MLA-Zitierstil (9. Ausg.)Imlay, Ralph W. Early Cretaceous (Albian) Ammonites from the Chitina Valley and Talkeetna Mountains, Alaska: The Early Cretaceous (Albian) Ammonites in Southern Alaska Have Strong Affinities with Those in California and Oregon but Are in Part of Boreal and Eurasian Origin. U.S. Gov. Print. Off, 1960.