Ritz, Philip M. <br/><br/>
Definitions and conventions of the 1972 :  input output study / 
Philip M. Ritz 
 - Washington :  United States Government Printing Office,  1980 
 - Various pagings ;  28 cm. 
 - Bureau of economic analysis staff paper .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tourist trade<br/>Economic analysis
<br/><br/><label>Dewey Class. No.: </label>338.47