1. Jurassic ammonites from southern Alaska Author/Creator: Imlay, Ralph W. 1908-1989. (Ralph Willard) Publication/Creation: [Washington, D.C.] : [U.S. G.P.O.], [1962-1964] Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 418-421. Access & Availability: Loading
2. Jurassic paleobiogeography of Alaska, Author/Creator: Imlay, Ralph W. 1908-1989. (Ralph Willard) Publication/Creation: Washington : U.S. Govt. Print. Off, 1973 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 801-802. Access & Availability: Loading
3. Jurassic paleobiogeography of Alaska Author/Creator: Imlay, Ralph W. 1908-1989, (Ralph Willard), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1973 Resource Type: Book Access & Availability: Loading