APA (7th ed.) Citation

Jonas, E. C. (1957). Pottery clay resources of Illinois. [publisher not identified].

Chicago Style (17th ed.) Citation

Jonas, E. C. Pottery Clay Resources of Illinois. Urbana: [publisher not identified], 1957.

MLA (9th ed.) Citation

Jonas, E. C. Pottery Clay Resources of Illinois. [publisher not identified], 1957.

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