Zeiger, D. (1997). Endless skies of blue: The national library of poetry. Watermark.
Lua i Stíl Chicago (17ú heag.)Zeiger, Diana. Endless Skies of Blue: The National Library of Poetry. Owings Mills: Watermark, 1997.
Lua MLA (9ú heag.)Zeiger, Diana. Endless Skies of Blue: The National Library of Poetry. Watermark, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.