APA (7th ed.) Citation

Sombrio, C., & Carvalho, p. J. d. (1936). João de Barros. s.n.].

Chicago Style (17th ed.) Citation

Sombrio, Carlos, and pref. Joaquim de Carvalho. João De Barros. s.n.], 1936.

MLA (8th ed.) Citation

Sombrio, Carlos, and pref. Joaquim de Carvalho. João De Barros. s.n.], 1936.

Warning: These citations may not always be 100% accurate.