Le sillon houiller de Haine-Sambre-et-Meuse - Delmer, A. (eigen uitgave, 2010)
Keywords: Prov Ht; Prov Lg; Prov N; bibgeolbel12868; country DE; country FR; domgeol SYNAM; map139; map150; map151; map152; map153; map154; strat 1; strat CARB; strat DEV; strat H; theme EVA; theme MINCOAL; theme TEC