APA (7th ed.) Citation

Eavenson, H. N. (1938). The Pittsburgh coal bed: Its early history and development. American Institute of Mining and Metallurgical Engineers.

Chicago Style (17th ed.) Citation

Eavenson, Howard Nicholas. The Pittsburgh Coal Bed: Its Early History and Development. New York: American Institute of Mining and Metallurgical Engineers, 1938.

MLA (9th ed.) Citation

Eavenson, Howard Nicholas. The Pittsburgh Coal Bed: Its Early History and Development. American Institute of Mining and Metallurgical Engineers, 1938.