APA (7e ed.) Bronvermelding

GRAEFF, E., MARTINS, C. E., & SALLUM JR., B. Nova República de Tancredo a Sarney.

Chicago (17e ed.) Bronvermelding

GRAEFF, EDUARDO, Carlos Estevam MARTINS, en Brasílio SALLUM JR. Nova República De Tancredo a Sarney.

MLA (8e ed.) Bronvermelding

GRAEFF, EDUARDO, et al. Nova República De Tancredo a Sarney.