Barrington, R. M. Report on the Migration of Birds in the Spring and Autumn of 1884. Sixth Report (Vol. II No. 1).
Chicago-referens (17:e uppl.)Barrington, Richard Manliffe. Report on the Migration of Birds in the Spring and Autumn of 1884. Sixth Report (Vol. II No. 1).
MLA-referens (9:e uppl.)Barrington, Richard Manliffe. Report on the Migration of Birds in the Spring and Autumn of 1884. Sixth Report (Vol. II No. 1).
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.