Recreation economic decisions Comparing benefits and cost/ 
Richard  G Walsh.  
 - Pennyslvania:    Venture publishing,  1986.  
 - xiv, 637 p. :  ill. ; 
<br/><br/><label>ISBN: </label>910251150 
<br/><br/><label>Subjects--Topical Terms: </label><br/>_Leisure 
<br/><br/><label>LC Class. No.: </label>GV 182.15 .W35 1986