De Robertis, E D P, et al. <br/><br/>
General cytology 

 - 3 
 -  W B Saunders Co., London  1960 
 - 555 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cytology; Biology
<br/><br/><label>Dewey Class. No.: </label>574.87  DER-G3