00384nam a2200133 a 450000100080000000500110000800800410001902000220006010000240008224500650010626000430017130000110021465000250022510193702014-02-22       2009    bl uuuu     u00u1 u    #d  a978-0-8076-0453-31 aVON BERTALANFFY, L.  aGeneral system theorybfoundations, development, applcations  aNew York (USA): George Brazillerc2009  a295 p.  aANALISIS DE SISTEMAS