APA引文

Piper, D. (2006). 90 minutes in heaven: A true story of death and life.

Chicago Style (17th ed.) Citation

Piper, Don. 90 Minutes in Heaven: A True Story of Death and Life. 2006.

MLA引文

Piper, Don. 90 Minutes in Heaven: A True Story of Death and Life. 2006.

警告：這些引文格式不一定是100％准確.