Models of urban structure / 
edited by David C. Sweet. 
 - Lexington, Mass. :  Lexington Books,  1972. 
 - xi, 252 p. :  ill. 
<br/><br/><label>ISBN: </label>0669613665 
<br/><br/><label>Subjects--Topical Terms: </label><br/>City planning--Mathematical models.