Hullen, G. (2003). Living Arrangements and Households - Methods and Results of Demographic Projections.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHullen, Gert. Living Arrangements and Households - Methods and Results of Demographic Projections. Wiesbaden, 2003.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHullen, Gert. Living Arrangements and Households - Methods and Results of Demographic Projections. 2003.
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