Guest, E. M. (1937). Some notes on the dating of sheela-na-gigs.
Lua i Stíl Chicago (17ú heag.)Guest, Edith M. Some Notes on the Dating of Sheela-na-gigs. 1937.
Lua MLA (9ú heag.)Guest, Edith M. Some Notes on the Dating of Sheela-na-gigs. 1937.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
