@book{16991,
	author = {Zock, Hetty,},
	title = {A Psychology of Ultimate Concern :},
	publisher = {Brill,},
	year = {1990.},
	series = {International Series in the Psychology of Religion ;},
	address = {Leiden ;},
	url = {http://dx.doi.org/10.1163/9789004672635}
}