APA引文

Willis, C. J., & Ashworth, A. (1987). Practice and procedure for the quantity surveyor (9th ed.). Collins.

Chicago Style (17th ed.) Citation

Willis, Christopher J., and A. Ashworth. Practice and Procedure for the Quantity Surveyor. 9th ed. London: Collins, 1987.

MLA引文

Willis, Christopher J., and A. Ashworth. Practice and Procedure for the Quantity Surveyor. 9th ed. Collins, 1987.