Cita APA (7th ed.)

STALLCUP, J. G. (1989). Illustrated changes: Of the 1990 NEC. American Technical Pub.

Cita Chicago (17th ed.)

STALLCUP, James G. Illustrated Changes: Of the 1990 NEC. Homewood: American Technical Pub, 1989.

Cita MLA (9th ed.)

STALLCUP, James G. Illustrated Changes: Of the 1990 NEC. American Technical Pub, 1989.