Sproul, R. C. (1992). Essential truths of the christian faith. Tyndale.
芝加哥风格引文Sproul, R. C. Essential Truths of the Christian Faith. Wheaton: Tyndale, 1992.
MLA引文Sproul, R. C. Essential Truths of the Christian Faith. Tyndale, 1992.
警告：这些引文格式不一定是100％准确.