Grubb, T. C. (2006). Ptilochronology: Feather time and the biology of birds. Oxford University Press.
Citazione stile Chigago Style (17a edizione)Grubb, Thomas C. Ptilochronology: Feather Time and the Biology of Birds. Oxford: Oxford University Press, 2006.
Citatione MLA (9a ed.)Grubb, Thomas C. Ptilochronology: Feather Time and the Biology of Birds. Oxford University Press, 2006.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.