Halfman, R. L. (1962). Dynamics: :systems, variation, methods and relativity. Addison - Wesley.
Chicago Edition CitationHalfman, Robert L. Dynamics: :systems, Variation, Methods and Relativity. London: Addison - Wesley, 1962.
Cita MLAHalfman, Robert L. Dynamics: :systems, Variation, Methods and Relativity. Addison - Wesley, 1962.
Atenció: Aquestes cites poden no estar 100% correctes.