Gardiner, H. C. (1957). Edmund Campion: Hero of Gods underground. Vision Books.
Chicago Style (17. basım) AtıfGardiner, Harold C. Edmund Campion: Hero of Gods Underground. New York: Vision Books, 1957.
MLA (8th ed.) AtıfGardiner, Harold C. Edmund Campion: Hero of Gods Underground. Vision Books, 1957.
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