APA (7th ed.) Citation

Illinois State Geological Survey & Gluskoter, H. J. (1977). Trace elements in coal: Occurrence and distribution. Illinois State Geological Survey.

Chicago Style (17th ed.) Citation

Illinois State Geological Survey and Harold J. Gluskoter. Trace Elements in Coal: Occurrence and Distribution. Urbana: Illinois State Geological Survey, 1977.

MLA (9th ed.) Citation

Illinois State Geological Survey and Harold J. Gluskoter. Trace Elements in Coal: Occurrence and Distribution. Illinois State Geological Survey, 1977.