APA aipamena

colombo,Umberto. (1998). Energy and sustainable development. Tata energy research institute.

Chicago Style aipamena

colombo,Umberto. Energy and Sustainable Development. Tata energy research institute, 1998.

MLA aipamena

colombo,Umberto. Energy and Sustainable Development. Tata energy research institute, 1998.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.