Rykwert, J. (1969). A poem. Verb Editions.
Lua i Stíl Chicago (17ú heag.)Rykwert, Joseph. A Poem. Londres: Verb Editions, 1969.
Lua MLA (9ú heag.)Rykwert, Joseph. A Poem. Verb Editions, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.