Description: La houille sous le pays de bray/

Main Author:	Negre, Georges
Format:	Book
Language:	French
Published:	Bruxelles: LʹEcho Minier et Industriel, 1911
Edition:	4e, completement ref. et augm.
Subjects:	Coal > Geology

Physical Description:	143 p. : tabs, maps ; 24 cm.