621.3
    Fit
    B2
          Fitsgerald , Arthur Eugene . Basic electrical engineering: circuits , machines , electronice , control [ by ] A . E. Fitzgerald [ and ] David E . Higginbotham . 2d. ed. ( La Habana ) Edición Revolucionarias , Instituto Cubano del Libro [ 1972] xi, 540 p . ilus . , diagrs ., tablas . 22 cm .