Shepherd, W., & Zand, P. (1979). Energy flow and power factor in nonsinusoidal circuits. Cambridge University Press.
Čikaški stil citiranja (17. izdanje)Shepherd, W., i P. Zand. Energy Flow and Power Factor in Nonsinusoidal Circuits. Cambridge [Eng.] ; New York: Cambridge University Press, 1979.
MLA način citiranja (8. izdanje)Shepherd, W., i P. Zand. Energy Flow and Power Factor in Nonsinusoidal Circuits. Cambridge University Press, 1979.
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