Style de citation APA (7e éd.)

Cooper, D. A. (1992). The heart of stillness: The elements of spiritual practice (1. ed., 1. [print.].). Bell Tower.

Style de citation Chicago (17e éd.)

Cooper, David A. The Heart of Stillness: The Elements of Spiritual Practice. 1. ed., 1. [print.]. New York: Bell Tower, 1992.

Style de citation MLA (8e éd.)

Cooper, David A. The Heart of Stillness: The Elements of Spiritual Practice. 1. ed., 1. [print.]. Bell Tower, 1992.