Hillstead, A. F. C. (1945). The blackbird: A contribution to the study of single avian species. Faber & Faber.
Citazione stile Chigago Style (17a edizione)Hillstead, Arthur Finch Clitheroe. The Blackbird: A Contribution to the Study of Single Avian Species. London: Faber & Faber, 1945.
Citatione MLA (8a ed.)Hillstead, Arthur Finch Clitheroe. The Blackbird: A Contribution to the Study of Single Avian Species. Faber & Faber, 1945.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.