Pergande, Theo <br/><br/>
The life history of two species of plantlice, inhabiting both the witch-hazel and birch  / 
by Theo Pergande 
 - Washington :   EUA. Department of Agriculture 
 - 44 p. 
 - Aphidae; 6 .
<br/><br/> Encuadernado con otros impresos similares 
<br/><br/><label>LCCN: </label>207140 
<br/><br/><label>Subjects--Topical Terms: </label><br/>-- Afididos -- Colecciones de escritos -- Hamamelidaceas -- Abedul--plagas
<br/><br/><label>Dewey Class. No.: </label>PA-C 595.752 A6