NASH, W. A., & STURGESS, C. (1977). Theory and problems of strenght of materials.-- Ed.2. McGraw-Hill Book.
Cita Chicago (17th ed.)NASH, William A., i C.E.N STURGESS. Theory and Problems of Strenght of Materials.-- Ed.2. New York: McGraw-Hill Book, 1977.
Cita MLA (9th ed.)NASH, William A., i C.E.N STURGESS. Theory and Problems of Strenght of Materials.-- Ed.2. McGraw-Hill Book, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.