Engstrom, T. W. (1978). What in the world is God doing?: The new face of missions. Word Books Publisher.
芝加哥风格引文Engstrom, Ted W. What in the World Is God Doing?: The New Face of Missions. Waco, Tex: Word Books Publisher, 1978.
MLA引文Engstrom, Ted W. What in the World Is God Doing?: The New Face of Missions. Word Books Publisher, 1978.
警告：这些引文格式不一定是100％准确.