Шаблон:Greenwood&Earnshaw1st
Greenwood, Norman N.; Earnshaw, A. (1984). Chemistry of the Elements. Oxford: Pergamon. ISBN 0-08-022057-6. doi:10.1002/crat.2170200510.
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Greenwood, Norman N.; Earnshaw, A. (1984). Chemistry of the Elements. Oxford: Pergamon. ISBN 0-08-022057-6. doi:10.1002/crat.2170200510.