Gayoso, A., & Dovring, F. (1970). Land reform in Brazil northeast, Cuba, Guatemala, Mexico. Agency for International Development, Dept. of State.
Lua i Stíl Chicago (17ú heag.)Gayoso, Antonio, agus Folke Dovring. Land Reform in Brazil Northeast, Cuba, Guatemala, Mexico. Washington: Agency for International Development, Dept. of State, 1970.
Lua MLA (8ú heag.)Gayoso, Antonio, agus Folke Dovring. Land Reform in Brazil Northeast, Cuba, Guatemala, Mexico. Agency for International Development, Dept. of State, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.