@book{73258,
	author = {Aiken, Lewis R., and ebrary, Inc.},
	title = {Human development in adulthood},
	publisher = {Plenum Press,},
	year = {c1998.},
	series = {The Plenum series in adult development and aging},
	address = {New York :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10046935}
}