Art Direction, Design [Reissue]: Maria Villar

Congas, Percussion: Laudir de Oliveira

Coordinator [Liner Notes]: Tim Scanlin

Design [Cover]: John Berg

Design [Cover]: Nick Fasciano

Drums: Daniel Seraphine

Engineer: Jeff Guercio

Engineer: Mark Guercio

Engineer: Wayne Tarnowski

Liner Notes: Phil Gallo

Mixed By: Phil Ramone

Mixed By [Bonus Selections]: Dave Donnelly

Mixed By [Bonus Selections]: Jeff Magid

Photography By [Poster]: Reid Miles

Producer: James William Guercio

Product Manager [Reissue]: Mike Engstrom

Recorded By [Strings]: Armin Steiner

Remastered By: Dave Donnelly

Supervised By [Audio Supervision]: Jeff Magid

Supervised By [Reissue A&R/Project]: David McLees

Supervised By [Reissue A&R/Project]: Gary Peterson (2)

Supervised By [Reissue A&R/Project]: Lee Loughnane

Trombone: James Pankow

Trumpet, Vocals: Lee Loughnane

Vocals, Bass: Peter Cetera

Vocals, Guitar: Terry Kath

Vocals, Keyboards: Robert Lamm

Woodwind: Walter Parazaider