APA (7th ed.) Citation

Solem, A., & Yochelson, E. L. (1979). North American Paleozoic land snails: With a summary of other Paleozoic nonmarine snails. U.S. Govt. Print. Off..

Chicago Style (17th ed.) Citation

Solem, Alan, and Ellis L. 1928-2006 Yochelson. North American Paleozoic Land Snails: With a Summary of Other Paleozoic Nonmarine Snails. Washington: U.S. Govt. Print. Off., 1979.

MLA (8th ed.) Citation

Solem, Alan, and Ellis L. 1928-2006 Yochelson. North American Paleozoic Land Snails: With a Summary of Other Paleozoic Nonmarine Snails. U.S. Govt. Print. Off., 1979.