Ministry of Mines and energy. (1978). National energy balance. Brasí-lia: Balanco energético nacional.
Čikaški stil citiranjaMinistry of Mines and energy. National Energy Balance. Brasí-lia: Balanco energético nacional, 1978.
MLA način citiranjaMinistry of Mines and energy. National Energy Balance. Brasí-lia: Balanco energético nacional, 1978.
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