@book{51470,
	author = {Back, Kurt W. and American Association for the Advancement of Science.},
	title = {Life course, integrative theories, and exemplary populations /},
	publisher = {Westview Press, for the American Association for the Advancement of Science,},
	year = {c1980.},
	series = {AAAS selected symposium ; 41},
	address = {Boulder, Colo. :}
}