Version #1 (recorded during Ziggy Stardust sessions) was released on initial pressings of the single in September 1972, however version #2 (also known as the "sax" version, recorded during the Aladdin Sane sessions) was inadvertently released on the April 1973 pressings of the single.
Version #1 was also released as the UK b-side of the 1979 single release John, I'm Only Dancing (Again)(1975) which was recorded during the Young Americans sessions.
Version #1 is available as a bonus track on the 1990 CD release of Ziggy Stardust and is also available on ChangesBowie and The Singles Collection (titled The Singles 1969-1993 in US).
Version #2 was released on initial pressings of ChangesOneBowie, but was later replaced by version #1.
Version #2 was also released on The Best Of Bowie (LP), Sound + Vision (3CD box set) and The Best of David Bowie 1969 / 1974 CD.
John, I'm Only Dancing (Again)(1975) (7" single version) released on Bowie Rare (LP).
John, I'm Only Dancing (Again)(1975) (12" single version) released as a bonus track on the CD release of Young Americans and also released on ChangesTwoBowie (LP).
Record Collector #208, page 102.
Sleeve notes from various Bowie albums.
The Complete Guide To The Music Of David Bowie (a book by David Buckley)
The Ziggy Stardust Companion
The Illustrated David Bowie Discography