APA-čujuhus (7. p.)
Duston, A., & Nesselrath, A. The invisible made invisible: Angels from the Vatican / Allen Duston, O. P., and Arnold Nesselrath.
Chicago-čujuhus (17. p.)
Duston, Allen, juo Arnold Nesselrath. The Invisible Made Invisible: Angels from the Vatican / Allen Duston, O. P., and Arnold Nesselrath.
MLA-čujuhus (9. p.)
Duston, Allen, juo Arnold Nesselrath. The Invisible Made Invisible: Angels from the Vatican / Allen Duston, O. P., and Arnold Nesselrath.
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