APA-viite (7. p.)

Gayler, W. (1989). Telephone voice transmission: Standards and measurement. Prentice Hall.

Chicago-viite (17. p.)

Gayler, Winston. Telephone Voice Transmission: Standards and Measurement. Englewood Cliffs, N.J.: Prentice Hall, 1989.

MLA-viite (9. p.)

Gayler, Winston. Telephone Voice Transmission: Standards and Measurement. Prentice Hall, 1989.