Boyd, B. (2012). Why lyrics last: Evolution, cognition, and Shakespeare's sonnets. Harvard University Press.
Lua i Stíl Chicago (17ú heag.)Boyd, Brian. Why Lyrics Last: Evolution, Cognition, and Shakespeare's Sonnets. Cambridge, Mass.: Harvard University Press, 2012.
Lua MLA (9ú heag.)Boyd, Brian. Why Lyrics Last: Evolution, Cognition, and Shakespeare's Sonnets. Harvard University Press, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.