APA (7th ed.) Citation

(1982). The Ordovician system in the United States: Correlation chart and explanatory notes.

Chicago Style (17th ed.) Citation

The Ordovician System in the United States: Correlation Chart and Explanatory Notes. Paris u.a, 1982.

MLA (9th ed.) Citation

The Ordovician System in the United States: Correlation Chart and Explanatory Notes. 1982.

Warning: These citations may not always be 100% accurate.