There has been data ("Argentine Billionaires: Ernestina Herrera de Noble, Gregorio Perez Companc, Eduardo Eurnekian, Maria Amalia Lacroze de Fortabat") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Fri Jan 31 07:03:45 2020, so the data displayed here has been removed .