APA (7th ed.) Citation

Agnew, A. F. (1956). Stratigraphy of Middle Ordovician rocks in the zinc-lead district of Wisconsin, Illinois, and Iowa. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Agnew, Allen F. Stratigraphy of Middle Ordovician Rocks in the Zinc-lead District of Wisconsin, Illinois, and Iowa. Washington: U.S. Govt. Print. Off, 1956.

MLA (9th ed.) Citation

Agnew, Allen F. Stratigraphy of Middle Ordovician Rocks in the Zinc-lead District of Wisconsin, Illinois, and Iowa. U.S. Govt. Print. Off, 1956.