Style de citation APA (7e éd.)

Pentland, H. J. S. (1997). Exchanges within: Questions from everyday life, selected from Gurdjieff group meetings with John Pentland in California, 1955-1984. Continuum.

Style de citation Chicago (17e éd.)

Pentland, Henry John Sinclair. Exchanges Within: Questions from Everyday Life, Selected from Gurdjieff Group Meetings with John Pentland in California, 1955-1984. New York: Continuum, 1997.

Style de citation MLA (8e éd.)

Pentland, Henry John Sinclair. Exchanges Within: Questions from Everyday Life, Selected from Gurdjieff Group Meetings with John Pentland in California, 1955-1984. Continuum, 1997.