Kriegel Robert. (1991). If it Ain't Broke-- Break it!: And other unconventional wisdom for a changing business world. Warner Books a time warner company.
芝加哥风格引文Kriegel Robert. If It Ain't Broke-- Break It!: And Other Unconventional Wisdom for a Changing Business World. USA: Warner Books a time warner company, 1991.
MLA引文Kriegel Robert. If It Ain't Broke-- Break It!: And Other Unconventional Wisdom for a Changing Business World. Warner Books a time warner company, 1991.
警告：这些引文格式不一定是100％准确.