Pickhardt, C. E. (2005). The Everything Parent's guide to the Strong willed Child. Adams Media.
芝加哥风格引文Pickhardt, Carl E. The Everything Parent's Guide to the Strong Willed Child. Massachuse tts: Adams Media, 2005.
MLA引文Pickhardt, Carl E. The Everything Parent's Guide to the Strong Willed Child. Adams Media, 2005.
警告：这些引文格式不一定是100％准确.