TY - BOOK AU - Samuelson,Paul A. AU - Nordhaus, William D. TI - Economics SN - 9780071263832 AV - HB171.5 .S25 1973 U1 - 330 PY - 1973///] CY - New York PB - McGraw-Hill KW - Economics N1 - Includes bibliographical references and index ER -