Heckscher, M. (2004). Be safe!: Simple strategies for death-free living. Quirk Books.
芝加哥风格引文Heckscher, Melissa. Be Safe!: Simple Strategies for Death-free Living. Philadelphia., PA: Quirk Books, 2004.
MLA引文Heckscher, Melissa. Be Safe!: Simple Strategies for Death-free Living. Quirk Books, 2004.
警告：这些引文格式不一定是100％准确.