Price, R. E. (1964). Rural unionization in Brazil.
Lua i Stíl Chicago (17ú heag.)Price, Robert E. Rural Unionization in Brazil. Madison, Wis., Land Tenure Center, Univ. of Wisconsin, 1964.
Lua MLA (9ú heag.)Price, Robert E. Rural Unionization in Brazil. 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.