Lua APA (7ú heag.)
Ballard, S. S. (1969). Wiley Series in pure and applied optics. Wiley.
Lua i Stíl Chicago (17ú heag.)
Ballard, Stanley Summer. Wiley Series in Pure and Applied Optics. New York: Wiley, 1969.
Lua MLA (9ú heag.)
Ballard, Stanley Summer. Wiley Series in Pure and Applied Optics. Wiley, 1969.
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