United States. Department of State. External Research Program & Heare, G. E. (1976). Brazil: Foreign relations of an emerging power : summary of studies prepared for the Department of State under the External Research Program. Dept. of State, External Research Program.
Chicago-referens (17:e uppl.)United States. Department of State. External Research Program och Gertrude E. Heare. Brazil: Foreign Relations of an Emerging Power : Summary of Studies Prepared for the Department of State Under the External Research Program. Washington, D.C.: Dept. of State, External Research Program, 1976.
MLA-referens (8:e uppl.)United States. Department of State. External Research Program och Gertrude E. Heare. Brazil: Foreign Relations of an Emerging Power : Summary of Studies Prepared for the Department of State Under the External Research Program. Dept. of State, External Research Program, 1976.