एपीए उद्धरण

Ministry of Mines and energy. (1978). National energy balance. Brasí-lia: Balanco energético nacional.

शिकागो स्टाइल उद्धरण

Ministry of Mines and energy. National Energy Balance. Brasí-lia: Balanco energético nacional, 1978.

एमएलए उद्धरण

Ministry of Mines and energy. National Energy Balance. Brasí-lia: Balanco energético nacional, 1978.