Kells, L. M. K. (1947). Elementary Differential Equations. (3a.). New York: McGraw-Hill Book Company,Inc..
Citación estilo ChicagoKells, Lyman M. Kells. Elementary Differential Equations. 3a. New York: McGraw-Hill Book Company,Inc., 1947.
Cita MLAKells, Lyman M. Kells. Elementary Differential Equations. 3a. New York: McGraw-Hill Book Company,Inc., 1947.
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