WHO expert Committee on biological standardization :  fortleth report. 

 - Geneva :  WHO,  1990. 
 - 221 p. ;  20 cm. 
 - Technical report series (World Health Organization) .
<br/><br/> Open. 
<br/><br/><label>ISBN: </label>9241208007 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological products--Standards.