Rodman, Sarah (18 December 2011). "ELEVEN FOR '11: Sarah Rodman's top albums of 2011". Boston Globe. Archived from the original on 17 January 2012 . Retrieved 27 December 2011. a b c "ADELE– 21 (ALBUM)". charts.nz. Archived from the original on 5 April 2017 . Retrieved 28 January 2011. ARIA Charts– End of Year Charts– Top 100 Albums 2013". Australian Recording Industry Association . Retrieved 7 March 2014. Myydyimmät ulkomaiset albumit vuonna 2011" (in Finnish). Musiikkituottajat – IFPI Finland. Retrieved 29 August 2013.

Billboard Music Awards 2012 winners". Billboard. Archived from the original on 5 July 2012 . Retrieved 25 February 2013. The once-in-a-lifetime smash success, 21 signifies the return of the ballad into popular favor. It’s the most sucessful and arguably the most significant record of the ‘10s. 21 is an essential breakup album; the Tapestry of the modern day.

Notes

Jahreshitparade Alben 2012" (in German). IFPI Austria. Hung Medien. Archived from the original on 28 August 2013 . Retrieved 8 January 2012. great artist great songs, but very bad mix, very muffled sound ? would not suggest to any of my friends.... Manning, James (10 January 2020). "ARIA releases charts of 2019 and charts of the decade". Mediaweek. Archived from the original on 22 March 2020 . Retrieved 27 September 2021. People's Choice Awards 2012: List of winners". CBS News. 12 January 2012. Archived from the original on 7 July 2015 . Retrieved 30 June 2013. a b "Nederlandse Top 40—Dutch Charts Portal" (in Dutch). MegaCharts. GfK. Archived from the original on 12 January 2013 . Retrieved 11 May 2011.

Caramanica, Jon (6 June 2012). "A Singer With Many Influences But a Soul That's Hers Alone". The New York Times. p.C1k. Archived from the original on 11 February 2022 . Retrieved 9 September 2012. Recording Industry in Numbers" (PDF). International Federation of the Phonographic Industry. 2013. p.10. Archived from the original (PDF) on 9 April 2013 . Retrieved 28 June 2023.

Versions

Greatest of All Time Billboard 200 Albums". Billboard. Archived from the original on 1 October 2016 . Retrieved 12 November 2015.