Moncorvo

US DEPT. OF STATE, AIRGRAM A-19, LISBON, PORTUGAL, DECEMBER20, 1971, 5 PP.SKILLINGS, DAVID N., JR., IRON ORE RESEARCH PROGRAM FORMONCORVO PROPERTY IN PORTUGAL, SKILLINGS' MINING REVIEW,V. 57, NO. 9, MARCH 2, 1968, PP 3-4.WORLD MINING, IRON ORE FIELD TO BE RE-EXAMINED, APRIL,1979,P. 92.EXPLORATION UND BERGHAU GMBH, DUSSELDORF, MONCORVO IRON OREPROJECT-PORTUGAL, PRE-FEASIBILITY STUDY FOR FERROMINASE.P., VOL'S 1 & 2, JANUARY, 1968.AURTHOR G. MCKEE CO. BENEFICIATION OF MONCORVO, PORTUGAL,IRON ORE, MINES EXPERIMENT STATION UNIVERSITY OF MINNESOTAMINNEAPOLIS, MN5545, DECEMBER 19, 1969, 21 PP.