Cita APA (7th ed.)
Barker, S. (1982). Small group leader's handbook. InterVarsity Press.
Cita Chicago (17th ed.)
Barker, Steve. Small Group Leader's Handbook. Downers Grove, Ill.: InterVarsity Press, 1982.
Cita MLA (9th ed.)
Barker, Steve. Small Group Leader's Handbook. InterVarsity Press, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.