Annual Report of Research and Technologic Work on Coal: Fiscal Year 1942

Author:	Fieldner, Arno Carl
Year:	1943
Document Type:	N/A
SUDOC:	I 28.27:7241
Series:	Information circular (United States. Bureau of Mines)
Report Number:	I. C. 7241
Subjects:	Coal mines and mining -- United States.
	Coal.
Link:	http://digital.library.unt.edu/ark:/67531/metadc67023/