APA-viite (7. p.)

Parr, R. G. (1964). The effect of third harmonic currents on cable ratings. Electrical Research Association.

Chicago-viite (17. p.)

Parr, R. G. The Effect of Third Harmonic Currents on Cable Ratings. Leatherhead, Surrey: Electrical Research Association, 1964.

MLA-viite (8. p.)

Parr, R. G. The Effect of Third Harmonic Currents on Cable Ratings. Electrical Research Association, 1964.