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Citing sources according to APA guidelines

APA Style @ TiU

1.5 Works with an unknown publication year

If the publication year is unknown, write “n.d.” (for “no date”) instead. 

  • Parenthetical citation
    An adequate EU response to climate change represents the greatest challenge of this century (Beaumont, n.d.).
  • Narrative citation
    According to Beaumont (n.d.), an adequate EU response to climate change represents the greatest challenge of this century.