APA (7th ed.) Citation

Lee, S. J., Trench, W., & Willis, A. (2011). Willis's elements of quantity surveying (11th ed.). Wiley-Blackwell.

Chicago Style (17th ed.) Citation

Lee, Sandra Jean, William Trench, and Andrew Willis. Willis's Elements of Quantity Surveying. 11th ed. Chichester: Wiley-Blackwell, 2011.

MLA (9th ed.) Citation

Lee, Sandra Jean, et al. Willis's Elements of Quantity Surveying. 11th ed. Wiley-Blackwell, 2011.

Warning: These citations may not always be 100% accurate.