00548nam a2200205Ia 4500 20260814110246.0 260814t1974 xx 000 0 und d donación en BIB/03.01.01/05928 Eckstein, Peter Sichel, Werner Basic economic concepts Chicago : Rand McNally College Publishing Company, 1974 xxiv, 480 p Rand MacNally economics series ECONOMIA MACROECONOMIA MJCh 18958 18958