CUSHMAN, JOSEPH AUGUSTINE.
Foraminifera; their classification and economic use. 3d ed., rev. & enl., with an illustrated key to the genera.
CUSHMAN, JOSEPH AUGUSTINE. Foraminifera; their classification and economic use. 3d ed., rev. & enl., with an illustrated key to the genera. © 15Apr40; A138904. Alice E. Cushman (C); 18Dec67; R425320.
Alice E. Cushman|C