GRAEFF, E., MARTINS, C. E., & SALLUM JR., B. Nova República de Tancredo a Sarney.
Lua i Stíl Chicago (17ú heag.)GRAEFF, EDUARDO, Carlos Estevam MARTINS, agus Brasílio SALLUM JR. Nova República De Tancredo a Sarney.
Lua MLA (8ú heag.)GRAEFF, EDUARDO, et al. Nova República De Tancredo a Sarney.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.