Dyfyniad APA

 Morling, K. (2010).  Geometric and engineering drawing.  Rputledge Taylor & Francis Group.

Dyfyniad Arddull Chicago

 Morling, Ken.  Geometric and Engineering Drawing.  Rputledge Taylor & Francis Group, 2010.

Dyfyniad MLA

 Morling, Ken.  Geometric and Engineering Drawing.  Rputledge Taylor & Francis Group, 2010.

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