Singh, S. (2012). Beginning Google Sketchup for 3D Printing. Apress.
Trích dẫn kiểu ChicagoSingh, Sandeep. Beginning Google Sketchup for 3D Printing. Apress, 2012.
MLA CitationSingh, Sandeep. Beginning Google Sketchup for 3D Printing. Apress, 2012.
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