Lewis, G. (1995). The power of a promise kept: Life stories. Focus on the Family Pub..
芝加哥风格引文Lewis, Gregg. The Power of a Promise Kept: Life Stories. Colorado Springs, Colo.: Focus on the Family Pub., 1995.
MLA引文Lewis, Gregg. The Power of a Promise Kept: Life Stories. Focus on the Family Pub., 1995.
警告：这些引文格式不一定是100％准确.