Bies, J. D. (1983). Mapping and topographic drafting. South-Western.
Chicago-viite (17. p.)Bies, John D. Mapping and Topographic Drafting. Cincinnati: South-Western, 1983.
MLA-viite (9. p.)Bies, John D. Mapping and Topographic Drafting. South-Western, 1983.
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