Buzas, Martin A. Spatial distribution of Miocene Foraminifera at Calvert Cliffs, Maryland / Martin A. Buzas and Thomas G. Gibson. - Washington Smithsonian Institution Press 1990. - iii, 35 p. : ill. ; 28 cm. - Smithsonian contributions to paleobiology no. 68. . Includes bibliographical references (p. 35). Subjects--Topical Terms: Foraminifera, Fossil--Maryland--Calvert Cliffs.Paleontology--Miocene.Paleontology--Maryland--Calvert Cliffs.