Šablon:RubberBible62nd
Weast, Robert C., ur. (1981). CRC Handbook of Chemistry and Physics (62nd izd.). Boca Raton, FL: CRC Press. ISBN 0-8493-0462-8.
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Weast, Robert C., ur. (1981). CRC Handbook of Chemistry and Physics (62nd izd.). Boca Raton, FL: CRC Press. ISBN 0-8493-0462-8.