Isard,W LangFord,T.W University of Pennsylvania, Pennsylvania United States of America <br/><br/>
Philadelphia Region Input -Output Study  Final Demand / T.W.Langford, W.Isard 

 - Philadelphia  University of PennsylvaniaRegional Science Research Institute  1966 
 - 2V, (vi, 237p) 
<br/><br/> Bound together 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Econometrics<br/>Economics