World Health Organization  <br/><br/>
Biological  substances :  international standards and reference reagents 

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 - Geneva  W H O  1987 
 - 94 p.  21 cm. 
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<br/><br/>  
<br/><br/>  Biological Products -Standards, W H O 
<br/><br/><label>Subjects--Topical Terms: </label><br/>W H O<br/>Biological Products -Standards
<br/><br/><label>Dewey Class. No.: </label>QU  / WHO