@book{179,
	author = {Rigg, Charlie and Riggs, Charlie.},
	title = {Thirty discipleship exercises :},
	publisher = {Billy Graham Evangelistic Association,},
	year = {c1998.},
	address = {Minneapolis, MN :},
	edition = {Rev. 1998},
	note = {This study was originally prepared by Charlie Riggs.}
}