00358nam a22001457i 4500001001000000005001700010008004100027082001800068100001100086245003100097260003500128300001700163650001400180020001800194SXC01287220260819093533.0260101s1976    ii            000 0 eng d  a330 PEN-M222  aPen, J10aModern economics /cPen, J  abPenguin Books, London,c1976  ap. ;c22 cm. 0aEconomics  a9780030066856