Niel F. Beardsley { et. al..}. (1961). The International dictionary of physics and electronics (2d ed.). Van Nostrand Reinhold.
Lua i Stíl Chicago (17ú heag.)Niel F. Beardsley { et. al..}. The International Dictionary of Physics and Electronics. 2d ed. Princeton, N.J: Van Nostrand Reinhold, 1961.
Lua MLA (9ú heag.)Niel F. Beardsley { et. al..}. The International Dictionary of Physics and Electronics. 2d ed. Van Nostrand Reinhold, 1961.
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