Hamilton, H. E. (1972). The cage of form: Likeness and difference in poetry. Dickenson.
Lua i Stíl Chicago (17ú heag.)Hamilton, Horace Ernts. The Cage of Form: Likeness and Difference in Poetry. Encion, Calif: Dickenson, 1972.
Lua MLA (9ú heag.)Hamilton, Horace Ernts. The Cage of Form: Likeness and Difference in Poetry. Dickenson, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.