APA (7th ed.) Citation

Eichenberg, F., & Ellsberg, R. (1992). Works of mercy. Orbis Books.

Chicago Style (17th ed.) Citation

Eichenberg, Fritz, and Robert Ellsberg. Works of Mercy. Maryknoll, NY: Orbis Books, 1992.

MLA (9th ed.) Citation

Eichenberg, Fritz, and Robert Ellsberg. Works of Mercy. Orbis Books, 1992.