Charlton, T. M. (1973). Energy principles in theory of structures. Oxford University Press.
Cita Chicago (17th ed.)Charlton, T. M. Energy Principles in Theory of Structures. London, ; New York,: Oxford University Press, 1973.
Cita MLA (8th ed.)Charlton, T. M. Energy Principles in Theory of Structures. Oxford University Press, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.