Ugural, A. C. (1991). Mechanics of materials. McGraw-Hill.
Cita Chicago (17th ed.)Ugural, A. C. Mechanics of Materials. New York: McGraw-Hill, 1991.
Cita MLA (9th ed.)Ugural, A. C. Mechanics of Materials. McGraw-Hill, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.