APA (7th ed.) Citation

Usill, G. W., Hart, K., & Hart, M. P. M. (1973). Usills practical surveying (16th edition.). Technical Press.

Chicago Style (17th ed.) Citation

Usill, George William, K.M Hart, and M. P. M. Hart. Usills Practical Surveying. 16th edition. London: Technical Press, 1973.

MLA (9th ed.) Citation

Usill, George William, et al. Usills Practical Surveying. 16th edition. Technical Press, 1973.