Style de citation APA (7e éd.)

Costas, O. E. (1982). Christ outside the gate: Mission beyond christendom. Orbis.

Style de citation Chicago (17e éd.)

Costas, Orlando E. Christ Outside the Gate: Mission Beyond Christendom. New York: Orbis, 1982.

Style de citation MLA (9e éd.)

Costas, Orlando E. Christ Outside the Gate: Mission Beyond Christendom. Orbis, 1982.