Ayon, Dionesia B. <br/><br/>
Notes on Questioned Documents  
by. Dionesia B. Ayon, Carmilita C. Casimiro, Arial C. Manlusoc and Paul B. Leviste 
 - Manila 
 - xi. 67 p.  27 cm. 
<br/><br/><br/>English Text 
<br/><br/><label>Dewey Class. No.: </label>C363.2565 n66