Shiers, G. (1963). Electronic drafting: Techniques and exercises. Prentice-Hall.
Chicago-viite (17. p.)Shiers, George. Electronic Drafting: Techniques and Exercises. Englewood Cliffs, N.J.: Prentice-Hall, 1963.
MLA-viite (8. p.)Shiers, George. Electronic Drafting: Techniques and Exercises. Prentice-Hall, 1963.
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