Bicudo, J. E. P. W. Ecological and environmental physiology of birds. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Bicudo, J. Eduardo P. W. Ecological and Environmental Physiology of Birds. Oxford University Press.
Lua MLA (8ú heag.)Bicudo, J. Eduardo P. W. Ecological and Environmental Physiology of Birds. Oxford University Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.