Bibliografía (12 obras)
Examining American household composition
2005
Demographic trends in the 20th century
2002
65+ in the United States
1996
World Population Profile
1994
Turkey
1993
Brazil
1992
Children's well-being
1990
Mexico's total, employed, and excess labor force
1989
Afghanistan
1987
Demographic estimates, projections, and selected social characteristics of the population of India
1986
