| Circles (LP, Album, Stereo, PR - Presswell Pressing) | Embryo Records | SD 529 | US | 1970 | |
| Circles (LP, Album, Promo, Stereo, PR - Presswell Pressing, Gatefold) | Embryo Records | SD 529 | US | 1970 | |
| Circles (LP, Album, Promo, Mono, PR - Presswell Pressing) | Embryo Records | SD 529 | US | 1970 | |
| Circles (LP, Album, Stereo, CTH - Terre Haute Pressing) | Embryo Records | SD 529 | US | 1970 | |
| Circles (LP, Album, Stereo, SP - Specialty Pressing) | Embryo Records | SD 529 | US | 1970 | |
Bass – - Ron Carter
Cello [Celli] – - Alan Shulman , - Harry Wimmer , - Harvey Shapiro , - Nellis DeLay , - Seymour Barab
Design [Album Artwork] – - Haig Adishian
Drums, Percussion – - Billy Cobham
Guitar – - Eric Weissberg , - Hugh McCracken
Photography By [Backliner Photo] – - Cheryl Rossum
Photography By [Cover] – - Joel Brodsky
Producer [Produced By] – - Herbie Mann
Recorded By [Recording Engineer] – - Dave Greene *
Synthesizer [Moog Synthesizer], Composed By, Directed By – - William S. Fischer
Vocals – - Bill Robinson (6)
Phonographic Copyright Atlantic Recording Corporation
Copyright Atlantic Recording Corporation
Licensed From Atlantic Recording Corporation
Manufactured By Rhino Entertainment Company
Record Company Warner Music Group
Marketed By Real Gone Music
Distributed By Cotillion Records