APA (7th ed.) Citation

Jackman, H. W., & Helfinstine, R. J. (1967). A survey of the coking properties of Illinois cokes. Illinois State Geological Survey.

Chicago Style (17th ed.) Citation

Jackman, Harold W., and Roy John Helfinstine. A Survey of the Coking Properties of Illinois Cokes. Urbana, Ill: Illinois State Geological Survey, 1967.

MLA (9th ed.) Citation

Jackman, Harold W., and Roy John Helfinstine. A Survey of the Coking Properties of Illinois Cokes. Illinois State Geological Survey, 1967.

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