Du Maurier, D. D. (1970). The blue lenses and other stories. Penguin.
Lua i Stíl Chicago (17ú heag.)Du Maurier, Daphne Dame. The Blue Lenses and Other Stories. Harmondsworth: Penguin, 1970.
Lua MLA (8ú heag.)Du Maurier, Daphne Dame. The Blue Lenses and Other Stories. Penguin, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.