APA-referens (7:e uppl.)
Spencer, H. (1956). Islam and the gospel of God: A comparison of the central doctrines of Christianity and Islam, prepared for the use of Christian workers among Muslims. I.S.P.C.K..
Chicago-referens (17:e uppl.)
Spencer, Harold. Islam and the Gospel of God: A Comparison of the Central Doctrines of Christianity and Islam, Prepared for the Use of Christian Workers Among Muslims. Delhi: I.S.P.C.K., 1956.
MLA-referens (9:e uppl.)
Spencer, Harold. Islam and the Gospel of God: A Comparison of the Central Doctrines of Christianity and Islam, Prepared for the Use of Christian Workers Among Muslims. I.S.P.C.K., 1956.
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