Hullen, G. (2003). Living Arrangements and Households - Methods and Results of Demographic Projections.
Lua i Stíl Chicago (17ú heag.)Hullen, Gert. Living Arrangements and Households - Methods and Results of Demographic Projections. Wiesbaden, 2003.
Lua MLA (8ú heag.)Hullen, Gert. Living Arrangements and Households - Methods and Results of Demographic Projections. 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.