De Leon, Hector S. <br/><br/>
Comments and cases on obligations and contracts / 
by Hector S. De Leon and Hector M. De Leon, Jr. 
 - 4th ed 
 - Manila :  Rex Book Store,  c2003. 
 - xxxvi, 914 p. 
<br/><br/><label>ISBN: </label>971-23-3889-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Obligations (Law)--Philippines