Engel, J. F., & H., W. (1978). What's gone wrong with the harvest? A communication strategy for the church and world evangelization. Zondervan.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Engel, James F., ба Wilbertton H. What's Gone Wrong with the Harvest? A Communication Strategy for the Church and World Evangelization. Zondervan, 1978.
MLA -ийн эшлэл (9 дэх хэвлэлт)Engel, James F., ба Wilbertton H. What's Gone Wrong with the Harvest? A Communication Strategy for the Church and World Evangelization. Zondervan, 1978.
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