Cushman, J. A. (1951). Paleocene foraminifera of the Gulf coastal region of the United States and adjacent areas: Descriptions and illustrations of smaller foraminifera from the gulf coastal region, Cuba, Central America, Haiti, and Trinidad. U.S. Gov. Print. Off.
Chicago-Zitierstil (17. Ausg.)Cushman, Joseph A. Paleocene Foraminifera of the Gulf Coastal Region of the United States and Adjacent Areas: Descriptions and Illustrations of Smaller Foraminifera from the Gulf Coastal Region, Cuba, Central America, Haiti, and Trinidad. Washington: U.S. Gov. Print. Off, 1951.
MLA-Zitierstil (9. Ausg.)Cushman, Joseph A. Paleocene Foraminifera of the Gulf Coastal Region of the United States and Adjacent Areas: Descriptions and Illustrations of Smaller Foraminifera from the Gulf Coastal Region, Cuba, Central America, Haiti, and Trinidad. U.S. Gov. Print. Off, 1951.