00407nam a22001457a 450000500170000002000220001703500130003903700130005210000230006524500620008825000130015026000450016330000270020870000260023520120505133941.0  a0070546851c00.00  aA-346441  aDPLbENG  aSamuelson, Paul A.  aEconomics /cby Paul A. Samuelson and William D. Nordhaus  a12th ed.  aNew YorkbMcGraw-Hill Book Companyc1985  axxxiii, 950p.c26 cms.  aNordhaus, William D.