APA aipamena

David de la Croix. (2013). Fertility ,Education,Growth and Sustainability. Cambridge University.

Chicago Style aipamena

David de la Croix. Fertility ,Education,Growth and Sustainability. Newyork: Cambridge University, 2013.

MLA aipamena

David de la Croix. Fertility ,Education,Growth and Sustainability. Cambridge University, 2013.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.