Owiny , Agoroachai Michael. <br/><br/>
A comparative study of the genital system and the breeding biology o f selected species of tropical land snails belonging to super family Ac hatinaceae /    
Agoroachai Michael Owiny. 
 - London ,     1972. 
 - 2 v.  :    ill., photos  ;    26 cm. 
<br/><br/>Thesis (Ph.D)  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Snails.--------