APA (7th ed.) Citation

Yochelson, E. L., & Jones, C. R. (1968). Teiichispira, a new early Ordovician gastropod genus. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Yochelson, Ellis L., and Clive R. Jones. Teiichispira, a New Early Ordovician Gastropod Genus. Washington: U.S. Govt. Print. Off, 1968.

MLA (9th ed.) Citation

Yochelson, Ellis L., and Clive R. Jones. Teiichispira, a New Early Ordovician Gastropod Genus. U.S. Govt. Print. Off, 1968.