APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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