APA (7th ed.) Citation

Yochelson, E. L. (1970). The Early Cambrian fossil Salterella conulata Clark in eastern North America. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Yochelson, Ellis L. The Early Cambrian Fossil Salterella Conulata Clark in Eastern North America. Washington: U.S. Govt. Print. Off, 1970.

MLA (9th ed.) Citation

Yochelson, Ellis L. The Early Cambrian Fossil Salterella Conulata Clark in Eastern North America. U.S. Govt. Print. Off, 1970.