APA-ийн эшлэл(7 дахь хэвлэлт)

Percy, J. O., & Bennett, M. D. (1961). facing The Unfinished Task: Messages delivered at the congress on world missions (ed.). Zondervan.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Percy, J. O., ба Mary Dr Bennett. Facing The Unfinished Task: Messages Delivered at the Congress on World Missions. ed. Michigan: Zondervan, 1961.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Percy, J. O., ба Mary Dr Bennett. Facing The Unfinished Task: Messages Delivered at the Congress on World Missions. ed. Zondervan, 1961.