APA (7. basım) Alıntı

Willis, A. J., & Willis, C. J. (1969). Elements of quantity surveying (6th ed. (metric).). Crosby Lockwood.

Chicago Style (17. basım) Atıf

Willis, Arthur James, ve Christopher James Willis. Elements of Quantity Surveying. 6th ed. (metric). London: Crosby Lockwood, 1969.

MLA (9th ed.) Atıf

Willis, Arthur James, ve Christopher James Willis. Elements of Quantity Surveying. 6th ed. (metric). Crosby Lockwood, 1969.