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Lua i Stíl Chicago (17ú heag.)Kenward, B., C. Schloegl, C. Rutz, A. Weir, T. Bugnyar, agus A. Kacelnik. On the Evolutionary and Ontogenetic Origins of Tool-oriented Behaviour in New Caledonian Crows (Corvus Moneduloides). 2011.
Lua MLA (9ú heag.)Kenward, B., et al. On the Evolutionary and Ontogenetic Origins of Tool-oriented Behaviour in New Caledonian Crows (Corvus Moneduloides). 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.