Adele, c., & Recordings, p. d. X. (2009). Adele 21. XL Recordings.
Lua i Stíl Chicago (17ú heag.)Adele, cantor, agus produção de XL Recordings. Adele 21. XL Recordings, 2009.
Lua MLA (8ú heag.)Adele, cantor, agus produção de XL Recordings. Adele 21. XL Recordings, 2009.
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