APA (7th ed.) Citation

Mitchell, D. R., & McCabe, L. C. (1937). Washability characteristics of Illinois coal screenings. [publisher not identified].

Chicago Style (17th ed.) Citation

Mitchell, David Ray, and Louis Cordell McCabe. Washability Characteristics of Illinois Coal Screenings. Urbana, Illinois: [publisher not identified], 1937.

MLA (9th ed.) Citation

Mitchell, David Ray, and Louis Cordell McCabe. Washability Characteristics of Illinois Coal Screenings. [publisher not identified], 1937.