APA (7th ed.) Citation

Frederiksen, N. O. (1988). Sporomorph biostratigraphy, floral changes, and paleoclimatology, Eocene and earliest Oligocene of the eastern Gulf Coast. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Frederiksen, Norman O. Sporomorph Biostratigraphy, Floral Changes, and Paleoclimatology, Eocene and Earliest Oligocene of the Eastern Gulf Coast. [Reston, Va.]: Dept. of the Interior, U.S. Geological Survey, 1988.

MLA (9th ed.) Citation

Frederiksen, Norman O. Sporomorph Biostratigraphy, Floral Changes, and Paleoclimatology, Eocene and Earliest Oligocene of the Eastern Gulf Coast. Dept. of the Interior, U.S. Geological Survey, 1988.