Pennisi,Louis L. (1972). Elements of Ordinary Differential Equations. New York: Holt,Rinehart.
Citación estilo ChicagoPennisi,Louis L. Elements of Ordinary Differential Equations. New York: Holt,Rinehart, 1972.
Cita MLAPennisi,Louis L. Elements of Ordinary Differential Equations. New York: Holt,Rinehart, 1972.
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