Παραπομπή APA

Friedel, R. D. (1987). Edison's electric light: Biography of an invention. New Brunswick: Rutgers University Press.

Παραπομπή Chicago Style

Friedel, Robert D. Edison's Electric Light: Biography of an Invention. New Brunswick: Rutgers University Press, 1987.

Παραπομπή MLA

Friedel, Robert D. Edison's Electric Light: Biography of an Invention. New Brunswick: Rutgers University Press, 1987.

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