Felbeck, D. K. (1968). Introduction to Strengthening Mechanisms. Prentice-Hall.
Cita Chicago (17th ed.)Felbeck, David K. Introduction to Strengthening Mechanisms. Englewood Cliffs: Prentice-Hall, 1968.
Cita MLA (9th ed.)Felbeck, David K. Introduction to Strengthening Mechanisms. Prentice-Hall, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.