Ernst, George W. <br/><br/>
GPS: a case study in generality and problem solving/ 
[by] George W. Ernst [and] Allen Newell. 
 - New York:  Academic Press,  1969. 
 - x, 297 p.:  illus.,  24 cm. 
 - ACM monograph series .
<br/><br/> A revision of the authors' thesis, Carnegie Institute of Technology, 1966. 
<br/><br/>Bibliography: p. 290-294. 
<br/><br/><label>LCCN: </label>69012276 //r922 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>GPS
<br/><br/><label>Dewey Class. No.: </label>651.8  / E71g