APA aipamena

Berrah, N. (2007). Sustainable energy in China. Worldbank.

Chicago Style aipamena

Berrah, N. Sustainable Energy in China. Worldbank, 2007.

MLA aipamena

Berrah, N. Sustainable Energy in China. Worldbank, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.