00370nam a2200157   45000010005000000030003000050050017000080080041000250350018000660350017000840500020001011000026001212450013001472500011001602600041001719110UR20220428114009.0061102|||||||||||||||||||||||||||||||| d  a(janium) 9099  a(janium)9099 4aHB71b.H44 19921 aHeilbroner, Robert L.10aEconomia  a7a ed.  bPrentice Hall Hispanoamericanac1992