Παραπομπή σε μορφή APA (7η εκδ.)

De Waal, E., Nouwen, H. J. M., & Merton, T. (2000). A Seven Day Journey With Thomas Merton: Esther de Waal. [Forew. by Henry Nouwen. Photogr. by Thomas Merton OCR] ([New ed.].). Eagle.

Παραπομπή σε μορφή Chicago (17η εκδ.)

De Waal, Esther, Henri J. M. Nouwen, και Thomas Merton. A Seven Day Journey With Thomas Merton: Esther De Waal. [Forew. by Henry Nouwen. Photogr. by Thomas Merton OCR]. [New ed.]. Guildford: Eagle, 2000.

Παραπομπή σε μορφή MLA (8th εκδ.)

De Waal, Esther, et al. A Seven Day Journey With Thomas Merton: Esther De Waal. [Forew. by Henry Nouwen. Photogr. by Thomas Merton OCR]. [New ed.]. Eagle, 2000.