| Reference | {Deposit:: JOHNSTON, W.D., JR., AND MOACYR DE VASCONCELOS, E.F., 1943, TUNGSTENIO NA PARAIBA E RIO GRANDE DO NORTE: NIMERACAO E METALURGIA, V. 7, NO. 41, P. 247-260}{Other Database:: CIMRI}{Production:: JOHNSTON AND MOACYR DE VASCONCELOS (1943).} |