Cita APA (7th ed.)

Whitney, D. S. (1991). Spiritual disciplines for the christian life. Newpress.

Cita Chicago (17th ed.)

Whitney, Donald S. Spiritual Disciplines for the Christian Life. Colorado Springs: Newpress, 1991.

Cita MLA (9th ed.)

Whitney, Donald S. Spiritual Disciplines for the Christian Life. Newpress, 1991.