APA aipamena

Egelston. (2013). Sustainable Development (1.). Springer Netherlands.

Chicago Style aipamena

Egelston. Sustainable Development. 1. Springer Netherlands, 2013.

MLA aipamena

Egelston. Sustainable Development. 1. Springer Netherlands, 2013.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.