Annual Report of Research and Technologic Work on Coal: Fiscal Year 1941

Author:	Fieldner, Arno Carl
Year:	1941
Document Type:	N/A
SUDOC:	I 28.27:7190
Series:	Information circular (United States. Bureau of Mines)
Report Number:	I. C. 7190
Subjects:	Coal mines and mining -- United States.
	Coal.
Link:	http://digital.library.unt.edu/ark:/67531/metadc67018/