New mollusks from tropical west America - Keen, A. Myra (Angeline Myra), 1905-1986. (Ithaca, N.Y., U.S.A. : Paleontological Research Institution, 1958)
Running title: New mollusks tropical west America.
"May 23, 1958."
Includes bibliographical references (p. 252).
Keywords: Mollusks -- Pacific Coast