Παραπομπή σε μορφή APA (7η εκδ.)

Spiess, E. (1874). Comparative Study of Religions and its Importance for Christianity: A Paper Read before teh General Conference of the Evangelical Alliance New York, October 6, 1873. : Fromann.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Spiess, Edmund. Comparative Study of Religions and Its Importance for Christianity: A Paper Read Before Teh General Conference of the Evangelical Alliance New York, October 6, 1873. Jena: : Fromann, 1874.

Παραπομπή σε μορφή MLA (8th εκδ.)

Spiess, Edmund. Comparative Study of Religions and Its Importance for Christianity: A Paper Read Before Teh General Conference of the Evangelical Alliance New York, October 6, 1873. : Fromann, 1874.