Uhlenberg, Peter (2002). Migration and Geographic Distribution.. Ekerdt, David J. (Ed.) (pp. 935-938). New York: Macmillan Reference USA.
As the Baby Boomers enter retirement, the 4-vol. Encyclopedia Of Aging offers a timely resource encompassing all aspects of aging. Covering a variety of disciplines---biology, medicine, economics, law, psychology, sociology, and history---the Encyclopedia also explores related issues such as religion, spirituality, and ethics. Also includes a topical outline, primary source documents, addresses, web sites, and an index.