Purday, H. F. P. (1954). Linear equations in applied mechanics. Oliver and Boyd; Interscience Publishers.
芝加哥风格引文Purday, Herbert Frank Percy. Linear Equations in Applied Mechanics. Edinburgh, New York: Oliver and Boyd; Interscience Publishers, 1954.
MLA引文Purday, Herbert Frank Percy. Linear Equations in Applied Mechanics. Oliver and Boyd; Interscience Publishers, 1954.
警告：这些引文格式不一定是100％准确.