Cita APA (7th ed.)
Hartog, J. D. (1977). Strength of materials. Dover Publications.
Cita Chicago (17th ed.)
Hartog, J.P. Den. Strength of Materials. New York: Dover Publications, 1977.
Cita MLA (9th ed.)
Hartog, J.P. Den. Strength of Materials. Dover Publications, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.