APA (7th ed.) Citation

Tschudy, R. H. (1970). Two new pollen genera (Late Cretaceous and Paleocene) with possible affinity to the Illiciaceae. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Tschudy, Robert H. Two New Pollen Genera (Late Cretaceous and Paleocene) with Possible Affinity to the Illiciaceae. Washington: U.S. Govt. Print. Off, 1970.

MLA (9th ed.) Citation

Tschudy, Robert H. Two New Pollen Genera (Late Cretaceous and Paleocene) with Possible Affinity to the Illiciaceae. U.S. Govt. Print. Off, 1970.