Gourdin, M. (1969). Lagrangian formalism and symmetry laws. New York: Gordon and Breach Science Publishers.
Παραπομπή Chicago StyleGourdin, M. Lagrangian Formalism and Symmetry Laws. New York: Gordon and Breach Science Publishers, 1969.
Παραπομπή MLAGourdin, M. Lagrangian Formalism and Symmetry Laws. New York: Gordon and Breach Science Publishers, 1969.
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