APA-čujuhus (7. p.)
Engel, J. F., & Norton, W. (1975). What's gone wrong with the harvest?: A communication strategy for the church and world evangelism. Academie Books.
Chicago-čujuhus (17. p.)
Engel, James F., juo Wilbert Norton. What's Gone Wrong with the Harvest?: A Communication Strategy for the Church and World Evangelism. Grand Rapids: Academie Books, 1975.
MLA-čujuhus (9. p.)
Engel, James F., juo Wilbert Norton. What's Gone Wrong with the Harvest?: A Communication Strategy for the Church and World Evangelism. Academie Books, 1975.
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