P.A. Kovalev <br/><br/>
Silkworm breeding stocks 

 - Bombay  Central Silk Board  1970 
 - 233p 
<br/><br/><br/>ENGLISH 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sericulture
<br/><br/><label>Dewey Class. No.: </label>638.2  / KOV