Norfleet W. Rives is known for his biography "The United States and Mexico, 1821-1848: A History of the Relations Between the Two Countries from the Independence of Mexico to the Close of the War with the United States". He is also the author of "The Virginia Viceroy: Horatio Gates".

Demography.

why do we need demography?

demography

Jacob S. Siegel has written:

'The demography and epidemiology of human health and aging' -- subject(s): Epidemiology, Health and hygiene, Age distribution (Demography), Population aging, Older people

'A generation of change' -- subject(s): Age distribution (Demography), Older people, Population, Social conditions, Statistics

'Demographic aspects of aging and the older population in the United States' -- subject(s): Older people, Statistics

'Coverage of the Hispanic population of the United States in the 1970 census' -- subject(s): Census, 19th, 1970, Hispanic Americans, Statistics

'The population of Hungary' -- subject(s): Population

'International trends and perspectives' -- subject(s): Age distribution (Demography), Aging, Older people, Statistics, Vital statistitics