Heindel, M. (1920). The rosicrucian cosmo-conception: Or the mystic christianity. Rosicrucian Fellowship.
Citazione stile Chigago Style (17a edizione)Heindel, Max. The Rosicrucian Cosmo-conception: Or the Mystic Christianity. London: Rosicrucian Fellowship, 1920.
Citatione MLA (9a ed.)Heindel, Max. The Rosicrucian Cosmo-conception: Or the Mystic Christianity. Rosicrucian Fellowship, 1920.
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