Hullen, G. (2003). The capital of couples and the effects of human capital on family formation.
Chicago-Zitierstil (17. Ausg.)Hullen, Gert. The Capital of Couples and the Effects of Human Capital on Family Formation. Wiesbaden, 2003.
MLA-Zitierstil (8. Ausg.)Hullen, Gert. The Capital of Couples and the Effects of Human Capital on Family Formation. 2003.
警告：这些引文格式不一定是100％准确.