Fayet, A., Hansen, E., & Biro, D. (2019). Evidence of tool use in a seabird. National Academy of Sciences.
Lua i Stíl Chicago (17ú heag.)Fayet, A., E. Hansen, agus D. Biro. Evidence of Tool Use in a Seabird. National Academy of Sciences, 2019.
Lua MLA (9ú heag.)Fayet, A., et al. Evidence of Tool Use in a Seabird. National Academy of Sciences, 2019.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.