PETROVSKII I.G. <br/><br/>
Lectures on the theory of integral equations. 
PETROVSKII I.G. 
 - New York  Graylock Press          1957 
 - vi,97p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>B335, J7/SC