Citazione Stile APA (7a Edizione)
Engel, J. F., & Norton, W. (1975). What's gone wrong with the harvest?: A communication strategy for the church and world evangelism. Zondervan.
Citazione stile Chigago Style (17a edizione)
Engel, James F., e Wilbert Norton. What's Gone Wrong with the Harvest?: A Communication Strategy for the Church and World Evangelism. Grand Rapids: Zondervan, 1975.
Citatione MLA (9a ed.)
Engel, James F., e Wilbert Norton. What's Gone Wrong with the Harvest?: A Communication Strategy for the Church and World Evangelism. Zondervan, 1975.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.