Martin, James. <br/><br/>
Fourth-generation languages - volume 1 : principles  [Books]. 
James Martin 
 - Englewood Cliffs, New Jersey  Prentice-Hall  1985 
 - Pages: 420 
<br/><br/><label>ISBN: </label>0133296733  0.00 
<br/><br/><label>Subjects--Personal Names: </label><br/>Programming languages (Electronic computers)
<br/><br/><label>Dewey Class. No.: </label>QA/76.7  / MAR