Gustafson, R. J. (1988). Fundamentals of electricity for agriculture (2nd ed.). American Society of Agricultural Engineers.
Čikaški stil citiranja (17. izdanje)Gustafson, Robert J. Fundamentals of Electricity for Agriculture. 2nd ed. St. Joseph, Mich., USA: American Society of Agricultural Engineers, 1988.
MLA način citiranja (8. izdanje)Gustafson, Robert J. Fundamentals of Electricity for Agriculture. 2nd ed. American Society of Agricultural Engineers, 1988.
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