BIERALS, Gregory P. Grounding electrical distribution systems. [Place of publication not identified]: River Publishers, 2021. Dostupné z: https://doi.org/9781003207306.
APA CSE CSE NY ČSN ISO 690:2022 (číslování) ČSN ISO 690:2022 - autor, datum Harvard Chicago (16th edition) IEEE ISO 690 MLA (7th edition) Turabian (7th edition)