Adel, H. d. (1981). Methyl group rotation in crystals at low temperatures. Dutch Efficiency Bureau.
Lua i Stíl Chicago (17ú heag.)Adel, Hendrik den. Methyl Group Rotation in Crystals at Low Temperatures. Pijnacker: Dutch Efficiency Bureau, 1981.
Lua MLA (8ú heag.)Adel, Hendrik den. Methyl Group Rotation in Crystals at Low Temperatures. Dutch Efficiency Bureau, 1981.
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