Wimpenny, J., Weir, A., & Kacelnik, A. (2011). New Caledonia crows use tools for non-foraging activities. Springer-Verlag.
Lua i Stíl Chicago (17ú heag.)Wimpenny, J., A. Weir, agus A. Kacelnik. New Caledonia Crows Use Tools for Non-foraging Activities. Springer-Verlag, 2011.
Lua MLA (9ú heag.)Wimpenny, J., et al. New Caledonia Crows Use Tools for Non-foraging Activities. Springer-Verlag, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.