Hale, P. A. (1958). Roach, rutilus rutilus L. occurring in Co. Tyrone.
Lua i Stíl Chicago (17ú heag.)Hale, Patricia A. Roach, Rutilus Rutilus L. Occurring in Co. Tyrone. 1958.
Lua MLA (9ú heag.)Hale, Patricia A. Roach, Rutilus Rutilus L. Occurring in Co. Tyrone. 1958.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
