APA-čujuhus (7. p.)
Roberts, R. (1999). Lessons in leadership: Fifty respected evangelical leaders share their wisdom on ministry. Kregel Publications.
Chicago-čujuhus (17. p.)
Roberts, Randal. Lessons in Leadership: Fifty Respected Evangelical Leaders Share Their Wisdom on Ministry. Grand Rapids, MI: Kregel Publications, 1999.
MLA-čujuhus (9. p.)
Roberts, Randal. Lessons in Leadership: Fifty Respected Evangelical Leaders Share Their Wisdom on Ministry. Kregel Publications, 1999.
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