@book{60943,
	author = {Langley, Emile J. and ebrary, Inc.},
	title = {Psychology of sadness},
	publisher = {Nova Science Publishers,},
	year = {c2012.},
	series = {Psychology of emotions, motivations and actions},
	address = {New York :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10681397}
}