Nióbio, uma conquista nacional
By: Rogério C. de Cerqueira Leite ... [et al.].
Contributors: Leite, Rogério C. de Cerqueira, 1931-
Publisher: Livraria Duas Cidades
Published: 1988
Place of publication: São Paulo
Language: por
Number of pages: 101
Subjects: Niobium ores -- Brazil.; Niobium industry -- Brazil.
Notes: Includes bibliographical references (p. 101).