Engel, J. F. (1979). Contemporary christian communications: Its theory and practice. Thomas Nelson.
芝加哥风格引文Engel, James F. Contemporary Christian Communications: Its Theory and Practice. Nashville: Thomas Nelson, 1979.
MLA引文Engel, James F. Contemporary Christian Communications: Its Theory and Practice. Thomas Nelson, 1979.
警告：这些引文格式不一定是100％准确.