TY - BOOK AU - Ruffin,Roy AU - Gregory,Paul R. TI - Principles of Macroeconomics SN - 067318871X : AV - HB171.5 .R831 1988 U1 - 330 19 PY - 1988/// CY - Glenview, Ill. PB - Scott, Foresman KW - Economics N1 - Includes bibliographies and index ER -