APA (7th ed.) Citation

Littlefield, M. S. (1925). An investigation of the molding sand resources of Illinois. [publisher not identified].

Chicago Style (17th ed.) Citation

Littlefield, Max Sylvan. An Investigation of the Molding Sand Resources of Illinois. Urbana, Ill.: [publisher not identified], 1925.

MLA (9th ed.) Citation

Littlefield, Max Sylvan. An Investigation of the Molding Sand Resources of Illinois. [publisher not identified], 1925.