APA (7th ed.) Citation

Shimer, H. W., Shrock, R. R., & Grabau, A. W. (1944). Index fossils of North America: A new work based on the complete revision and reillustration of Grabau and Shimer's "North American index fossils," by Hervey W. Shimer and Robert R. Shrock. J. Wiley & Sons, inc. Chapman & Hall.

Chicago Style (17th ed.) Citation

Shimer, Hervey Woodburn, Robert R. Shrock, and Amadeus W. Grabau. Index Fossils of North America: A New Work Based on the Complete Revision and Reillustration of Grabau and Shimer's "North American Index Fossils," by Hervey W. Shimer and Robert R. Shrock. New York, London: J. Wiley & Sons, inc. Chapman & Hall, 1944.

MLA (9th ed.) Citation

Shimer, Hervey Woodburn, et al. Index Fossils of North America: A New Work Based on the Complete Revision and Reillustration of Grabau and Shimer's "North American Index Fossils," by Hervey W. Shimer and Robert R. Shrock. J. Wiley & Sons, inc. Chapman & Hall, 1944.