Electrical / [electronic resource] / National Center for Construction Education and Research.. — Upper Saddle River, N.J. : : Prentice Hall,, c1996-. — v. : : ill. ; 28 cm. + 4 updates, 2 exams and 2 floppy disks. - Wheels of learning.
Accompanied by updates for trainee, levels 1 and 2 and by updates, exams and computer disks for instructors, levels 1 and 2.