Guarino, Loretta Rose. <br/><br/>
The evolution of abstraction in programming languages / 
Loretta Rose Guarino. 
 - Pennsylvania :  Carnegie Mellon University,  1978 
 - 40 p. ; 
<br/><br/> Department of computer science. 
<br/><br/><label>ISBN: </label>1288 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programming languages.
<br/><br/><label>Dewey Class. No.: </label>005.13  / Ev