THE RELATIONSHIP BETWEEN RESOURCES AND RESERVES ESTIMATES FOR US COAL = LA RELATION ENTRE RESSOURCES ET RESERVES. LES ESTIMATIONS POUR LE CHARBON DES ETATS-UNISVAN RENSBURG WCJ.1982; RESOUR. POLICY; ISSN 0301-4207; GBR; DA. 1982; VOL. 8; NO 1; PP. 53-58; BIBL. 10 REF.Article

THE APPLICATION OF A COMPUTERIZED COAL INVENTORY IN THE FORMULATION OF AN ENERGY POLICY FOR SOUTH AFRICA.VAN RENSBURG WCJ.1977; IN: APCOM 77. INT. SYMP. APPL. COMPUT. OPER. RES. MINER. IND. 15; BRISBANE; 1977; VICTORIA; AUST. INST. MINING METALL.; DA. 1977; PP. 509-516; BIBL. 4 REF.Conference Paper

THE MINERALOGY OF THE TITANIFEROUS MAGNETITE AND ASSOCIATED SULPHIDES ON KENNEDY'S VALE 361 KT,LYDENBURG DISTRICT,TRANSVAAL.VAN RENSBURG WCJ.1965; ANN. GEOL. OPNAME; MDG; 1965, VOL. 4, P. 113 A 127Miscellaneous

GLOBAL COMPETITION FOR STRATEGIC MINERAL SUPPLIES = COMPETITION GLOBALE POUR L'APPROVISIONNEMENT EN MINERAUX STRATEGIQUESVAN RENSBURG WCJ.1981; RESOUR. POLICY; ISSN 0301-4207; GBR; DA. 1981; VOL. 7; NO 1; PP. 4-13Article

SUPERGENE OXIDATION AND HYDRATION OF MAGNETITE OF THE MESSINA FORMATION, SOUTPANSBERG DISTRICT, TRANSVAAL.VAN RENSBURG WCJ.1966; ANN. GEOL. OPNAME; MDG; 1966, VOL. 5, P. 93 A 103Miscellaneous

ECONOMIC IMPLICATIONS OF SEABED MINING.VAN RENSBURG WCJ.1974; IN: 2. COLL. INT. EXPLOIT. OCEANS; BORDEAUX; 1974; PARIS ACOBOR; 1974, VOL. 5, P. 1 A 2Miscellaneous

MAGNETIC CHROMITITE OF THE BUSHVELD COMPLEX.VAN RENSBURG WCJ.1965; ANN. GEOL. OPNAME; MDG; 1965, VOL. 4, P. 109 A 111Miscellaneous

THE GEOLOGY OF THE DWARS RIVER FRAGMENT,LYDENBURG DISTRICT,TRANSVAAL.VAN RENSBURG WCJ.1965; ANN. GEOL. OPNAME; MDG; 1965, VOL. 4, P. 69 A 78Miscellaneous

BARRIERS TO INVESTMENT IN THE THIRD WORLD MINERAL INDUSTRIES = OBSTACLES AUX INVESTISSEMENTS DANS LES INDUSTRIES MINERALES DU TIERS MONDEGROTEN E; VAN RENSBURG WCJ.1983; RESOUR. POLICY; ISSN 0301-4207; GBR; DA. 1983; VOL. 9; NO 1; PP. 33-42; BIBL. 42 REF.Article

THE CHROMITITE DEPOSITS AT NIETVERDIEND,MARICO DISTRICT,TRANSVAAL.KRUPARZ H; VAN RENSBURG WCJ.1965; ANN. GEOL. OPNAME; MDG; 1965, VOL. 4, P. 137 A 149Miscellaneous