Southern, R. (1909). Contributions towards a monograph of the British and Irish oligochaeta. with 5 Plates.
Lua i Stíl Chicago (17ú heag.)Southern, Rowland. Contributions Towards a Monograph of the British and Irish Oligochaeta. with 5 Plates. 1909.
Lua MLA (9ú heag.)Southern, Rowland. Contributions Towards a Monograph of the British and Irish Oligochaeta. with 5 Plates. 1909.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
