CRC handbook of chemistry and physics / 
editor-in-chief, Robert C. Weast. 
 - 61st ed. 
 - Boca Raton, FL :  CRC Press,  c1980. 
 - 1 v. (various pagings) ;  26 cm. 
<br/><br/><label>ISBN: </label>084930461 
<br/><br/><label>Dewey Class. No.: </label>540.202  / CRC