APA (7th ed.) Citation

Hillman, E., & Fransen, P. F. (1968). The wider ecumenism. Herder and Herder.

Chicago Style (17th ed.) Citation

Hillman, Eugene, and Piet F. Fransen. The Wider Ecumenism. New York: Herder and Herder, 1968.

MLA (9th ed.) Citation

Hillman, Eugene, and Piet F. Fransen. The Wider Ecumenism. Herder and Herder, 1968.