Frank, Nathaniel H.
Introduction to electricity and optics / by Nathaniel H. Frank. - 2nd ed. - New York : McGraw-Hill, 1950. - xv, 440 p. : ill.
Optics.
Electricity.
Introduction to electricity and optics / by Nathaniel H. Frank. - 2nd ed. - New York : McGraw-Hill, 1950. - xv, 440 p. : ill.
Optics.
Electricity.