Hoover, H. (1960). Reader's digest condensed books. London: The Reader's Digest Association.
Παραπομπή Chicago StyleHoover, Helen. Reader's Digest Condensed Books. London: The Reader's Digest Association, 1960.
Παραπομπή MLAHoover, Helen. Reader's Digest Condensed Books. London: The Reader's Digest Association, 1960.
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