ebrary, Inc. (1991). Twelve steps to self-improvement: A Crisp assessment profile. Crisp Publications, Inc..
芝加哥风格引文ebrary, Inc. Twelve Steps to Self-improvement: A Crisp Assessment Profile. Los Altos, Calif.: Crisp Publications, Inc., 1991.
MLA引文ebrary, Inc. Twelve Steps to Self-improvement: A Crisp Assessment Profile. Crisp Publications, Inc., 1991.
警告：这些引文格式不一定是100％准确.