Change in official methods of analysis 

 - 4th ed. 
 - Virginia :   Association of official Analytical Chemists INC,   1985. 
 - 5V (VI. 411 p. - V5. 218 p.) ;   28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Methods of analysis
<br/><br/><label>Dewey Class. No.: </label>R|H 543  / OFF.1-.5