APA(7版)引用形式
Piper, J. (2007). Don't waste your time. Crossway Books.
Chicagoスタイル(17版)引用形式
Piper, John. Don't Waste Your Time. Wheaton, Ill.: Crossway Books, 2007.
MLA(9版)引用形式
Piper, John. Don't Waste Your Time. Crossway Books, 2007.
警告: この引用は必ずしも正確ではありません.