APA (7th ed.) Citation

Grim, R. E. (1936). The Eocene sediments of Mississippi. [publisher not identified].

Chicago Style (17th ed.) Citation

Grim, Ralph E. The Eocene Sediments of Mississippi. University, Miss.: [publisher not identified], 1936.

MLA (9th ed.) Citation

Grim, Ralph E. The Eocene Sediments of Mississippi. [publisher not identified], 1936.