Schofield, W. (1993). Engineering surveying: Theory and examination problems for students (4th ed.). Butterworth-Heinemann.
Chicago-viite (17. p.)Schofield, W. Engineering Surveying: Theory and Examination Problems for Students. 4th ed. Oxford [England]: Butterworth-Heinemann, 1993.
MLA-viite (9. p.)Schofield, W. Engineering Surveying: Theory and Examination Problems for Students. 4th ed. Butterworth-Heinemann, 1993.
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