Cita APA (7th ed.)

Garland, J. D. (1981). National electrical code: Reference book (3rd ed.). Prentice-Hall.

Cita Chicago (17th ed.)

Garland, J. D. National Electrical Code: Reference Book. 3rd ed. Englewood Cliffs, N. J: Prentice-Hall, 1981.

Cita MLA (9th ed.)

Garland, J. D. National Electrical Code: Reference Book. 3rd ed. Prentice-Hall, 1981.