@book{2002,
	author = {Paul Tillich},
	title = {What is Religion},
	publisher = {Harper & Row},
	url = {https://library.trinitytheologicalcollege.org/cgi-bin/koha/opac-pdf-viewer.pl?file=E%20Books/E%20books%20Theology/What%20%20is%20Religion%20%5Bpaul%20tillich%5D.pdf}
}