Manual on Recommended Practices in Spectrophotometry 

 - 2nd ed. 
 - Philadelphia :   ASTM,  1966  
<br/><br/><label>Standard No.: </label>DEX-M6281 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ESPECTROFOTOMETRIA<br/>MANUAL
<br/><br/><label>Universal Decimal Class. No.: </label>(035)543.48