Robert, D. L., Gunter, W. S., & Oduyoye, M. A. (1997). Evangelism as the heart of mission. New York: General Board of Global Ministries, the United Methodist Church.

Robert, D. L., W. S. Gunter, and M. A. Oduyoye. Evangelism as the heart of mission. New York: General Board of Global Ministries, the United Methodist Church, 1997.

Robert DL, Gunter WS, Oduyoye MA. Evangelism as the heart of mission. New York: General Board of Global Ministries, the United Methodist Church; 1997.

Robert, D. L., et al. Evangelism as the heart of mission. General Board of Global Ministries, the United Methodist Church, 1997.

Robert DL, Gunter WS, Oduyoye MA. Evangelism as the heart of mission. New York: General Board of Global Ministries, the United Methodist Church; 1997.