Παραπομπή σε μορφή APA (7η εκδ.)

Hullen, G. (2003). Living Arrangements and Households - Methods and Results of Demographic Projections.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hullen, Gert. Living Arrangements and Households - Methods and Results of Demographic Projections. Wiesbaden, 2003.

Παραπομπή σε μορφή MLA (8th εκδ.)

Hullen, Gert. Living Arrangements and Households - Methods and Results of Demographic Projections. 2003.