Lua APA (7ú heag.)

Ullman, D. G. (1992). The mechanical design process. McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

Ullman, David G. The Mechanical Design Process. New York: McGraw-Hill, 1992.

Lua MLA (9ú heag.)

Ullman, David G. The Mechanical Design Process. McGraw-Hill, 1992.

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