APA (7th ed.) Citation

Betto, F. (1977). Against principalities and powers: Letters from a Brazilian jail. Orbis Books.

Chicago Style (17th ed.) Citation

Betto, Frei. Against Principalities and Powers: Letters from a Brazilian Jail. Maryknoll: Orbis Books, 1977.

MLA (8th ed.) Citation

Betto, Frei. Against Principalities and Powers: Letters from a Brazilian Jail. Orbis Books, 1977.

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