Niel F. Beardsley { et. al..}. (1961). The International dictionary of physics and electronics (2d ed.). Van Nostrand Reinhold.
Cita Chicago (17th ed.)Niel F. Beardsley { et. al..}. The International Dictionary of Physics and Electronics. 2d ed. Princeton, N.J: Van Nostrand Reinhold, 1961.
Cita MLA (9th ed.)Niel F. Beardsley { et. al..}. The International Dictionary of Physics and Electronics. 2d ed. Van Nostrand Reinhold, 1961.
Atenció: Aquestes cites poden no estar 100% correctes.