APA-čujuhus (7. p.)
Piper, D., & Murphey, C. (2004). 90 minutes in heaven: A true story of death & life. Revell.
Chicago-čujuhus (17. p.)
Piper, Don, juo Cecil Murphey. 90 Minutes in Heaven: A True Story of Death & Life. Grand Rapids, Mich: Revell, 2004.
MLA-čujuhus (9. p.)
Piper, Don, juo Cecil Murphey. 90 Minutes in Heaven: A True Story of Death & Life. Revell, 2004.
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