APA-čujuhus (7. p.)
Summer, P. (1993). The end of April: A Victoria Cross mystery. The Women's Press.
Chicago-čujuhus (17. p.)
Summer, Penny. The End of April: A Victoria Cross Mystery. London: The Women's Press, 1993.
MLA-čujuhus (9. p.)
Summer, Penny. The End of April: A Victoria Cross Mystery. The Women's Press, 1993.
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