Some Brazilian maps and map sources :
preliminary lists of publishing agencies, maps and atlases of Brazil.
APA Citation
United States. Dept. of State. Office of Intelligence Research and Analysis. (1946). Some Brazilian maps and map sources: preliminary lists of publishing agencies, maps and atlases of Brazil. Washington.
MLA Citation
United States. Dept. of State. Office of Intelligence Research and Analysis. Some Brazilian Maps And Map Sources: Preliminary Lists of Publishing Agencies, Maps And Atlases of Brazil. Washington, 1946.
Warning: These citations may not always be complete (especially for serials).