Law, W. (1971). A serious call to a devout and holy life. Sovereign Publishers.
芝加哥风格引文Law, William. A Serious Call to a Devout and Holy Life. Grand Rapids: Sovereign Publishers, 1971.
MLA引文Law, William. A Serious Call to a Devout and Holy Life. Sovereign Publishers, 1971.
警告：这些引文格式不一定是100％准确.