Lua APA (7ú heag.)
Giesecke, F. E. (1991). Technical drawing (9th ed.). Macmillan Pub. Co. ; Collier Macmillan Canada.
Lua i Stíl Chicago (17ú heag.)
Giesecke, Frederick Ernest. Technical Drawing. 9th ed. New York : Toronto: Macmillan Pub. Co. ; Collier Macmillan Canada, 1991.
Lua MLA (9ú heag.)
Giesecke, Frederick Ernest. Technical Drawing. 9th ed. Macmillan Pub. Co. ; Collier Macmillan Canada, 1991.
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