666 (Aphrodite's Child album) (English Wikipedia)

Hegarty, Paul; Halliwell, Martin (2011). Beyond and Before: Progressive Rock Since the 1960s. Continuum Books. p. 75. ISBN 9780826423320. Retrieved 12 April 2016.
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"Biblical Album Gets Merc Push". Billboard. Vol. 84, no. 20. 13 May 1972. p. 34. Retrieved 12 April 2016.
"666 Sparks $666". Billboard. Vol. 84, no. 43. 14 October 1972. p. 80. Retrieved 12 April 2016.
"Album Reviews". Billboard. Vol. 84, no. 16. 15 April 1972. p. 60. Retrieved 12 April 2016.
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darkside.ru

"Lucas Sideras – One Day". Discogs. 1972. Retrieved 12 April 2016.
"666 – 1977 reissue, UK". Discogs. 1977. Retrieved 12 April 2016.
"Aphrodite's Child – Break (1972, Brazil, vinyl)". Discogs. 1972. Retrieved 26 April 2022.
"Aphrodite's Child – 666 (Greece, 1974)". Discogs. Retrieved 26 April 2022.

Henshaw, Laurie (19 August 1972). "The Greeks have a word for it". Melody Maker. Retrieved 12 April 2016.
Barton, Geoff (10 August 1974). "Surprise Surprise". Sounds. Retrieved 12 April 2016.
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Lake, Steve (10 August 1974). "Vangelis Papathanassiou – one of those rare rock characters". Melody Maker. Retrieved 12 April 2016.
"Aphrodite's Child". Elsewhere. Retrieved 12 April 2016.

D., Spence. "Top 25 Prog Rock Albums". IGN. p. 6. Archived from the original on 15 June 2010. Retrieved 22 December 2010.

Hughes, Rob; Dome, Malcolm (9 October 2018). "16 of the Best Psychedelic Rock Albums Ever". Classic Rock. Retrieved 27 April 2021.

Ross Bennett. "Aphrodite's Child – Disc of the day – Mojo". Mojo4music.com. Archived from the original on 26 July 2011. Retrieved 17 August 2011.

Campbell, Hernan M. "Aphrodite's Child – 666". Sputnikmusic. Retrieved 12 April 2016.

Laing, Dave (26 January 2015). "Demis Roussos obituary". The Guardian. Retrieved 27 January 2015.

Burrows, Tim (14 July 2008). "Beck – Modern Guilt". The Quietus. Retrieved 12 April 2016. A most probably intentional homage to "The Four Horsemen".

"Ultratop.be – Aphrodite's Child – 666" (in Dutch). Hung Medien. Retrieved 17 November 2024.

Engelen, Henk. "The concept book synopsis". Vangelis Lyrics. Retrieved 12 April 2016.
"The story of '666'". Archived from the original on 20 September 2012.
Engelen, Henk. "Background information". Vangelis Lyrics. Retrieved 12 April 2016.
Engelen, Henk. "The sleeve design (as told by Costas Ferris)". Vangelis Lyrics. Retrieved 12 April 2016.
Engelen, Henk. "Meeting Salvador Dalí as told by Costas Ferris". Vangelis Lyrics. Retrieved 12 April 2016.
Engelen, Henk. "666 vs La Sagrada Família – The Barcelona Happening by Salvador Dalí". Vangelis Lyrics. Retrieved 12 April 2016.

D., Spence. "Top 25 Prog Rock Albums". IGN. p. 6. Archived from the original on 15 June 2010. Retrieved 22 December 2010.
"The story of '666'". Archived from the original on 20 September 2012.
Bryan, Jon. "Not Forgotten: Aphrodite's Child – 666". Backseat Mafia. Archived from the original on 1 April 2016. Retrieved 12 April 2016.
Ross Bennett. "Aphrodite's Child – Disc of the day – Mojo". Mojo4music.com. Archived from the original on 26 July 2011. Retrieved 17 August 2011.
"Official IFPI Charts Top-75 Albums Sales Chart (Combined) – Εβδομάδα: 46/2024". IFPI Greece. Archived from the original on 20 November 2024. Retrieved 20 November 2024.

Tsioulcas, Anastasia (26 January 2015). "From Prog-Rock Pioneer To Kitsch King: Remembering Demis Roussos". WWNO. Retrieved 27 January 2015.