Lever, J. W. (1956). The Elizabethan love sonnet. Methuen.
Lua i Stíl Chicago (17ú heag.)Lever, J. W. The Elizabethan Love Sonnet. London: Methuen, 1956.
Lua MLA (8ú heag.)Lever, J. W. The Elizabethan Love Sonnet. Methuen, 1956.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.