ᱪᱷᱟᱸᱪ:Greenwood&Earnshaw2nd
Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8. {{cite book}}: Cite has empty unknown parameter: |name-list-format= (help); Invalid |ref=harv (help)
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