APA (7th ed.) Citation

Shimer, H. W. (1949). Index fossils of North America (4. printing.). MIT Press.

Chicago Style (17th ed.) Citation

Shimer, Hervey Woodburn. Index Fossils of North America. 4. printing. Cambridge, Mass: MIT Press, 1949.

MLA (9th ed.) Citation

Shimer, Hervey Woodburn. Index Fossils of North America. 4. printing. MIT Press, 1949.