APA (7th ed.) Zitazioa
Packer, J. I. (1975). Knowing God study guide. InterVarsity Press.
Chicago Style (17th ed.) Zitazioa
Packer, J. I. Knowing God Study Guide. Illinois: InterVarsity Press, 1975.
MLA (9th ed.) Zitazioa
Packer, J. I. Knowing God Study Guide. InterVarsity Press, 1975.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.