WoRMS source request
You have requested access to download the full text of the source (SourceID: 183952):
Cushman, J. A. (1939). A monograph of the foraminiferal Family Nonionidae. United States Geological Survey Professional Papers. 191: 1-123.
Cushman, J. A. (1939). A monograph of the foraminiferal Family Nonionidae. United States Geological Survey Professional Papers. 191: 1-123.