| Reference | {Deposit:: NICKDATA, INC. A COMPREHENSIVE NICKEL INDUSTRY COST DATABASE}{Deposit:: AND COSTING PROGRAM. 1991. ILMAR J. MARTENS,}{Deposit:: THOMAS F. TORRIES.}{Deposit:: CRU - QUARTERLY MARKET SERVICE. NICKEL. APRIL, 1991.}{Deposit:: NICKEL NEWS. NOV. 23, 1991. P.5.} |