Piper, J. (2005). God is the Gospel: Meditations on God's love as the gift of Himself. Crossway Books.
Lua i Stíl Chicago (17ú heag.)Piper, John. God Is the Gospel: Meditations on God's Love as the Gift of Himself. Wheaton, Ill.: Crossway Books, 2005.
Lua MLA (9ú heag.)Piper, John. God Is the Gospel: Meditations on God's Love as the Gift of Himself. Crossway Books, 2005.
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