Harkness, H. W. (1964). Elementary plane rigid dynamics. Academic Press.
Cita Chicago (17th ed.)Harkness, H. W. Elementary Plane Rigid Dynamics. Nueva York: Academic Press, 1964.
Cita MLA (9th ed.)Harkness, H. W. Elementary Plane Rigid Dynamics. Academic Press, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.