Robinove, Charles Joseph,  1931- <br/><br/>
Principles of logic and the use of digital geographic information systems / 
by Charles J. Robinove 
 - Washington :  United States Government Printing Office,  1986 
 - iii, 19 p. :  ill. ;  26 cm. 
 - U.S. Geological Survey circular ;  977 .
<br/><br/>Bibliography: p. 19 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography--Data processing
<br/><br/><label>Dewey Class. No.: </label>025.0691