ASHWORTH, A. H. (2013). Willis's practice and procedure for the quantity surveyor. John Wiley & Sons.
芝加哥风格引文ASHWORTH, Allan Hogg. Willis's Practice and Procedure for the Quantity Surveyor. John Wiley & Sons, 2013.
MLA引文ASHWORTH, Allan Hogg. Willis's Practice and Procedure for the Quantity Surveyor. John Wiley & Sons, 2013.
警告：这些引文格式不一定是100％准确.