APA (7th ed.) Citation

Ross, C. A. (1964). Geology of the Paducah and Smithland Quadrangles in Illinois. [publisher not identified].

Chicago Style (17th ed.) Citation

Ross, Charles Alexander. Geology of the Paducah and Smithland Quadrangles in Illinois. Urbana: [publisher not identified], 1964.

MLA (9th ed.) Citation

Ross, Charles Alexander. Geology of the Paducah and Smithland Quadrangles in Illinois. [publisher not identified], 1964.

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