Lua APA (7ú heag.)

GESECKE, F. E. (1967). Technical drawing.-- 5th ed. The Macmillan Company.

Lua i Stíl Chicago (17ú heag.)

GESECKE, Frederick E. Technical Drawing.-- 5th Ed. New York: The Macmillan Company, 1967.

Lua MLA (9ú heag.)

GESECKE, Frederick E. Technical Drawing.-- 5th Ed. The Macmillan Company, 1967.

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