Haynes, kingsley E  . <br/><br/>
Gravity and spatial interaction models /  
byKingsley E. Haynes  and   A.. stewart Fotheringham. 
 - New Delhi :   Sage Publications India ,   1984. 
 - 88p. :   ill.,figs. ;   20 cm .  
 - The scientific geography series,   NULL  NULL; .
 - The scientific geography series,   NULL  NULL; .
<br/><br/>Includes bibliography and index 
<br/><br/><label>ISBN: </label>0803923260  Rs. 104.94 
<br/><br/><label>Subjects--Index Terms: </label>CLASSICAL MECHANICS 
<br/><br/><label>Dewey Class. No.: </label>526.7  / HAY/G