MINING LEGISLATION AND ADMINISTRATION IN CANADA = LEGISLATION MINIERE ET ADMINISTRATION AU CANADAJEFFERY WG.1981; MINER. POLICY SECT. INTERNAL REP.; CAN; DA. 1981-03; NO 81/5; 22; ABS. FRE; 3 TAB. ; ILL.Serial Issue

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CHOIX DE POLITIQUE MINERALEJEFFERY WG.1981; ; CAN; OTTAWA: MINIST. ENERG. MINES RESSOURCES; DA. 1981; 18 P.; ISBN 0-662-91254-3Miscellaneous

LEGISLATION ET ADMINISTRATION MINIERES AU CANADAJEFFERY WG.1981; DEP. ENERGY MINES, RESOUR., MINER. RESOUR. BRANCH; ISSN 549770; CAN; DA. 1981; MRI 81-5F; 24 P.Serial Issue