Gaya APA

Stallcup, James G.. (1989). Illustrated change of the 1990 NEC . Homewood, IL: American Technical.

Gaya Chicago

Stallcup, James G.. Illustrated change of the 1990 NEC. Homewood, IL: American Technical, 1989. Text.

Gaya MLA

Stallcup, James G.. Illustrated change of the 1990 NEC. Homewood, IL: American Technical, 1989. Text.

Gaya Turabian

Stallcup, James G.. Illustrated change of the 1990 NEC. Homewood, IL: American Technical, 1989. Print.