Chicago / Chicago 13

Art Direction [Reissue Art Direction] – Maria Villar Art Direction, Painting – Gary Meyer Artwork [Cover Envisioned By] – Tony Lane (2) Bass, Vocals – Peter Cetera Design [Reissue Design] – Valerie Valera Drums – Daniel Seraphine Engineer – Jim Boyer Engineer [Assistant] – Bradshaw Leigh Engineer [Assistant] – John Beverly Jones Engineer [Assistant] – Nick Blagona Engineer [Assistant] – Peter Lewis Engineer [Assistant] – Robbie Whelan Engineer [Assistant] – Roger Ginsley Guitar, Vocals – Donnie Dacus Keyboards, Vocals – Robert Lamm Management [Reissue Product Manager] – Mike Engstrom Mastered By [Reissue Remastering] – Dave Donnelly Other [Assistants To Chicago] – Don Johnson Other [Assistants To Chicago] – Ken Jones Other [Producer Assistant] – Michele Slagter Other [Reissue A&r / Project Supervision] – David McLees Other [Reissue A&r / Project Supervision] – Gary Peterson Other [Reissue A&r / Project Supervision] – Jeff Magid Other [Reissue A&r / Project Supervision] – Lee Loughnane Other [Reissue Project Assistance] – Bob O'Neill Other [Reissue Project Assistance] – Steve Woolard Other [Reissue Project Assistance] – Steven Chean Other [Reissue Project Assistance] – Tim Scanlin Percussion – Laudir de Oliveira Photography By [Back Cover & Sleeve Influenced By] – Daniel Seraphine Photography By [Back Cover & Sleeve] – Gary Heery Producer – Chicago (2) Producer – Phil Ramone Supervised By [Reissue Editorial Supervision] – Cory Frye Trombone – James Pankow Woodwind – Walter Parazaider