ASHWORTH, A. (2013). Willis’s practice and procedure for the quantity surveyor. John Wiley.
Chicago-čujuhus (17. p.)ASHWORTH, Allan. Willis’s Practice and Procedure for the Quantity Surveyor. John Wiley, 2013.
MLA-čujuhus (9. p.)ASHWORTH, Allan. Willis’s Practice and Procedure for the Quantity Surveyor. John Wiley, 2013.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.