APA (7th ed.) Citation

Cady, G. H., & McCabe, L. C. (1942). Modern concepts of the physical constitution of coal. [publisher not identified].

Chicago Style (17th ed.) Citation

Cady, Gilbert H., and Louis Cordell McCabe. Modern Concepts of the Physical Constitution of Coal. Urbana, Illinois: [publisher not identified], 1942.

MLA (9th ed.) Citation

Cady, Gilbert H., and Louis Cordell McCabe. Modern Concepts of the Physical Constitution of Coal. [publisher not identified], 1942.