APA-čujuhus (7. p.)
Campbell, M. (2001). Agatha Christie. Pocket Essentials.
Chicago-čujuhus (17. p.)
Campbell, Mark. Agatha Christie. Harpenden: Pocket Essentials, 2001.
MLA-čujuhus (9. p.)
Campbell, Mark. Agatha Christie. Pocket Essentials, 2001.
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