Cita APA (7th ed.)

Merton, T. (1969). Contemplative prayer. Herder and Herder.

Cita Chicago (17th ed.)

Merton, Thomas. Contemplative Prayer. [New York]: Herder and Herder, 1969.

Cita MLA (9th ed.)

Merton, Thomas. Contemplative Prayer. Herder and Herder, 1969.