Merkoša sitáhtat

APA-čujuhus (7. p.)
(2013). NewScientist: September - October 2013. Reed Business Information Ltd.
Chicago-čujuhus (17. p.)
NewScientist: September - October 2013. London: Reed Business Information Ltd, 2013.
MLA-čujuhus (9. p.)
NewScientist: September - October 2013. Reed Business Information Ltd, 2013.
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