Foraminifera; their classification and economic use - Cushman, Joseph A. (Joseph Augustine), 1881 -1949 (1928)

Foraminifera; their classification and economic use - Cushman, Joseph A. (Joseph Augustine), 1881 -1949 (1928)

Foraminifera; their classification and economic use - Cushman, Joseph A. (Joseph Augustine), 1881 -1949 (1928)

Smithsonian contributions to the marine sciences - Smithsonian Institution (Smithsonian Institution Press, 1985)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1953)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1953)