Kats, A. (1961). Hydrogen in alpha-quartz. Philips Research Laboratories.
Lua i Stíl Chicago (17ú heag.)Kats, A. Hydrogen in Alpha-quartz. Eindhoven, Netherlands: Philips Research Laboratories, 1961.
Lua MLA (8ú heag.)Kats, A. Hydrogen in Alpha-quartz. Philips Research Laboratories, 1961.
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