Percy, J. O., & Bennett, M. D. (1961). facing The Unfinished Task: Messages delivered at the congress on world missions (ed.). Zondervan.
Chicago-čujuhus (17. p.)Percy, J. O., juo Mary Dr Bennett. Facing The Unfinished Task: Messages Delivered at the Congress on World Missions. ed. Michigan: Zondervan, 1961.
MLA-čujuhus (9. p.)Percy, J. O., juo Mary Dr Bennett. Facing The Unfinished Task: Messages Delivered at the Congress on World Missions. ed. Zondervan, 1961.
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