Handbook of chemistry and physics :   a ready-reference pocket book of chemical and physical data / 
Robert C Weast 
 - 50th ed. 
 - Ohio :  Cranwood parkway,  1969 
 - xxiv, various p. :  ill. ;  23 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics<br/>Chemistry<br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>543.212  / HAN 1969