Beryllium and beryl

Author:	Petar, Alice Virginia,
Year:	1929
Document Type:	MAIN
SUDOC:	C 22.11:6190
Series:	Information circular / Bureau of Mines ;
Report Number:	6190
Subjects:	Beryllium
	Beryl
Link:	https://hdl.handle.net/2027/mdp.39015095078831