A talk by David duPlessis on Tongues and Interpretation, particularly addressing pastors of mainline churches who are wanting to introduce the Holy Spirit in their church. The location is likely a Full Gospel Businessmen's Fellowship.
duPlessis, David, "Tongues, Interpretation and Prophecy - David DuPlessis (10-11-1962)" (1962). Charismatic Renewal Audio Collection. 20.