APA (7th ed.) Zitazioa
Hefley, J. C. (1969). By life or by death: Violence and martyrdom in this turbulent age. Zondervan Publishing House.
Chicago Style (17th ed.) Zitazioa
Hefley, James C. By Life or by Death: Violence and Martyrdom in This Turbulent Age. Grand Rapids: Zondervan Publishing House, 1969.
MLA (9th ed.) Zitazioa
Hefley, James C. By Life or by Death: Violence and Martyrdom in This Turbulent Age. Zondervan Publishing House, 1969.
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