SFORMO (Sformo)

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  Iml-Ppm for Auto Technicians 6
  by Moore, Sformo
  Softcover, Singular, ISBN 1401840000 (1-4018-4000-0)
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  via
  Practical Problems in Mathematics for Automotive Technicians
  by George Moore, Larry Sformo, SFORMO
  Softcover, Delmar Pub, ISBN 1401839991 (1-4018-3999-1)
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  Practical Problems in Mathematics for Automotive Technicians
  by Todd Sformo, SFORMO
  Softcover, Delmar Pub, ISBN 1428335242 (1-4283-3524-2)