एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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