Cita APA (7th ed.)
Bergen , A. R., & Vittal , V. (2000). Power systems analysis (2nd ed.). Pearson Education.
Cita Chicago (17th ed.)
Bergen , Arthur R., i Vijay Vittal. Power Systems Analysis. 2nd ed. New Delhi: Pearson Education, 2000.
Cita MLA (9th ed.)
Bergen , Arthur R., i Vijay Vittal. Power Systems Analysis. 2nd ed. Pearson Education, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.