Ullman, D. G. (1992). The mechanical design process. McGraw-Hill.
Cita Chicago (17th ed.)Ullman, David G. The Mechanical Design Process. New York: McGraw-Hill, 1992.
Cita MLA (9th ed.)Ullman, David G. The Mechanical Design Process. McGraw-Hill, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.