Onyx marble and travertine

Author:	Bowles, Oliver.
Additional Authors:	Banks, D. M.
Year:	1933
Document Type:	USBI
Issuing Agency:	U.S. Dept. of Commerce, Bureau of Mines,
SUDOC:	C 22.11:6751
Series:	Information circular / United States. Bureau of Mines ;
Report Number:	6751
Subjects:	Onyx marble
	Travertine
	Marble industry and trade
Link:	https://hdl.handle.net/2027/mdp.39015077572165