Ellis, S. S. (1999). The beautiful in nature and art. Thoemmes.
Lua i Stíl Chicago (17ú heag.)Ellis, Sarah Stickney. The Beautiful in Nature and Art. Bristol [u.a.]: Thoemmes, 1999.
Lua MLA (8ú heag.)Ellis, Sarah Stickney. The Beautiful in Nature and Art. Thoemmes, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.