Schofield, W. (2001). Engineering surveying: Theory and examination problems for students (5th ed.). Oxford: Elsevier Butterworth-Heinemann.
Παραπομπή Chicago StyleSchofield, Wilfred. Engineering Surveying: Theory and Examination Problems for Students. 5th ed. Oxford: Elsevier Butterworth-Heinemann, 2001.
Παραπομπή MLASchofield, Wilfred. Engineering Surveying: Theory and Examination Problems for Students. 5th ed. Oxford: Elsevier Butterworth-Heinemann, 2001.
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