TY - BOOK ID - 129340242 TI - A descriptive sketch of the geology and economic minerals of Canada AU - Young, G. A. AU - Brock, R. W. AU - Geological Survey of Canada. AU - Canada. Department of mines. Geological survey branch. PY - 1909 PB - Ottawa : Government Printing Bureau, DB - UniCat KW - Geology KW - Mines and mineral resources UR - https://www.unicat.be/uniCat?func=search&query=sysid:129340242 AB - ER -