Middle Jurassic (Bathonian) ammonites from southern Alaska / by Ralph W. Imlay.

[Reston, Va.] : Dept. of the Interior, Geological Survey ; Washington : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1980.

iv, 42, [25] p. : ill. ; 29 cm.

Includes index.

English

June 01, 2002

Bibliography: p. 38-39.

Geological Survey (U.S.)