@book {9129,
	title = {Higher Stages of Human Development: Perspectives on Adult Growth},
	year = {1990},
	publisher = { Oxford University Press},
	organization = { Oxford University Press},
	address = {New York},
	url = {http://www.amazon.com/Higher-Stages-Human-Development-Perspectives/dp/019503483X},
	author = {E Langer},
	editor = {E Langer and C Alexander}
}
