APA-čujuhus (7. p.)
Walsh, W. T. (1987). Isabella of Spain: The last crusader. Tan Books and Publishers, Inc..
Chicago-čujuhus (17. p.)
Walsh, William Thomas. Isabella of Spain: The Last Crusader. Rockford: Tan Books and Publishers, Inc., 1987.
MLA-čujuhus (9. p.)
Walsh, William Thomas. Isabella of Spain: The Last Crusader. Tan Books and Publishers, Inc., 1987.
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