Sproul, R. C. (1992). Essential truths of the christian faith. Tyndale.
Lua i Stíl Chicago (17ú heag.)Sproul, R. C. Essential Truths of the Christian Faith. Wheaton: Tyndale, 1992.
Lua MLA (9ú heag.)Sproul, R. C. Essential Truths of the Christian Faith. Tyndale, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.