@book{3698,
	author = {Nasr, Seyyed Hossein.},
	title = {Islamic spirituality :foundations /},
	publisher = {SCM Press Ltd},
	year = {1989},
	series = {Vol. 19 of world spirituality : an encyclopedic history of the religious quest},
	address = {London},
	note = {Includes indexes.}
}