@book{1506,
	author = {Kennon L. Callahan},
	title = {Twelve Keys to an Effective Church - Strong, Healthy Congregations Living in the Grace of God},
	publisher = {Jossey-Bass},
	url = {https://library.trinitytheologicalcollege.org/cgi-bin/koha/opac-pdf-viewer.pl?file=E%20Books/E%20books%20NT/Twelve%20Keys%20to%20an%20Effective%20Church%20-%20Strong%2C%20Healthy%20Congregations%20Living%20in%20the%20Grace%20of%20God%2C%20%5BKennon%20L.%20Callahan%5D.pdf}
}