backing vocals [chor] George Nicolaidis
bass Bernward Malaka
cover Franz Bielmeier
cover Male
drums Claus Ritter
guitar, vocals Stefan Schwaab
mixed by [mix] Bernd Schmidt
producer [produktion] Franz Bielmeier
recorded by [uncredited] Bernd Schmidt
vocals, guitar Jürgen Engler
Mixed At Studio Klangwerkstatt
Recorded At Studio Klangwerkstatt
Made By EMI Electrola GmbH
Pressed By EMI Electrola GmbH
Recorded By [Uncredited] and Recorded At added according to Rondo site:
http://www.rondo-ton.de/rondo-singles-sessions/male-clever-smart-fit-3-1980/

Catalog# on center labels: fit 3
Catalog# on rear cover and center labels: 7 F 666 918

Sonderfertigung EMI Electrola GmbH
Matrix / Runout: 7 F 666.918-A (Label A)
Matrix / Runout: 7 F 666.918-B (Label B)
Matrix / Runout: 666918-A1 (Runout A stamped)
Matrix / Runout: 666918-B1 (Runout B stamped)