APA (7th ed.) Citation

Prouty, W. F. (1916). Preliminary report on the crystalline and other marbles of Alabama. [publisher not identified].

Chicago Style (17th ed.) Citation

Prouty, William F. Preliminary Report on the Crystalline and Other Marbles of Alabama. University, Ala.: [publisher not identified], 1916.

MLA (9th ed.) Citation

Prouty, William F. Preliminary Report on the Crystalline and Other Marbles of Alabama. [publisher not identified], 1916.