APA (7th ed.) Citation

Machin, J. S. (1963). Studies on the ultrafine structure of some Illinois coals. [publisher not identified].

Chicago Style (17th ed.) Citation

Machin, James Stewart. Studies on the Ultrafine Structure of Some Illinois Coals. Urbana: [publisher not identified], 1963.

MLA (9th ed.) Citation

Machin, James Stewart. Studies on the Ultrafine Structure of Some Illinois Coals. [publisher not identified], 1963.

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