Cita APA (7a ed.)

Frost, B. (1988). The art of mental prayer. Alban.

Cita Chicago Style (17a ed.)

Frost, Bede. The Art of Mental Prayer. London [etc.]: Alban, 1988.

Cita MLA (9a ed.)

Frost, Bede. The Art of Mental Prayer. Alban, 1988.