APA (7th ed.) Citation

Willis, A. J., & Willis, C. J. (1972). Practice and procedure for the quantity surveyor (6th ed. (metric).). Lockwood.

Chicago Style (17th ed.) Citation

Willis, Arthur James, and Christopher James Willis. Practice and Procedure for the Quantity Surveyor. 6th ed. (metric). London: Lockwood, 1972.

MLA (9th ed.) Citation

Willis, Arthur James, and Christopher James Willis. Practice and Procedure for the Quantity Surveyor. 6th ed. (metric). Lockwood, 1972.