Heiler, F. (1926). The spirit of worship: Its forms and manifestations in the Christian churches (1. publ.). Hodder and Stoughton.
Παραπομπή σε μορφή Chicago (17η εκδ.)Heiler, Friedrich. The Spirit of Worship: Its Forms and Manifestations in the Christian Churches. 1. publ. London: Hodder and Stoughton, 1926.
Παραπομπή σε μορφή MLA (8th εκδ.)Heiler, Friedrich. The Spirit of Worship: Its Forms and Manifestations in the Christian Churches. 1. publ. Hodder and Stoughton, 1926.
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