Cita APA (7th ed.)
Packer, J. (1973). Knowing God. InterVarsity.
Cita Chicago (17th ed.)
Packer, J.I. Knowing God. Illinois: InterVarsity, 1973.
Cita MLA (9th ed.)
Packer, J.I. Knowing God. InterVarsity, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.