@book{205220,
	author = {Harper, David,},
	title = {Qualitative research methods in mental health and psychotherapy : a guide for students and practitioners /},
	publisher = {John Wiley & Sons,},
	year = {2012.},
	address = {Chichester, West Sussex :},
	url = {http://onlinelibrary.wiley.com/book/10.1002/9781119973249}
}