00363nam a22001571a 45000010005000000030004000050050017000090080041000260500018000671000018000852450029001032500006001322640021001383000010001596500036001695930OSt20260204212033.0060216s1973||||ag ||||||b||||||||||spa||  a303.483 H368b  aHeller, Krumm  aBiorritmo / Krumm Heller  a6  aArgentina : Kier  a134 p  a1.Ciencia - Efectos SocialesÌ