Waaijman, K., & Vried, J. (2002). Spirituality: Forms, foundations, methods. Peeters.
Cita Chicago Style (17a ed.)Waaijman, Kees, y John Vried. Spirituality: Forms, Foundations, Methods. Leuven [etc.]: Peeters, 2002.
Cita MLA (9a ed.)Waaijman, Kees, y John Vried. Spirituality: Forms, Foundations, Methods. Peeters, 2002.
Precaución: Estas citas no son 100% exactas.