Shea D.R. <br/><br/>
Calvo clause 

 - London  Oxford University Press England       1955 
 - 323p  cm. 
<br/><br/><label>Standard No.: </label>18,960 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>Z1, J5