Hartman, W. J. (1987). Five audiences: Identifying groups in your church. Abingdon.
Čikaški stil citiranja (17. izdanje)Hartman, Warren J. Five Audiences: Identifying Groups in Your Church. Nashville: Abingdon, 1987.
MLA način citiranja (9. izdanje)Hartman, Warren J. Five Audiences: Identifying Groups in Your Church. Abingdon, 1987.
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