Economics for Investment 

 - Londres   : American Express Bank Ltd 
 - Mensual 
 - 1996 (ene, mar, abr, jul, sep, oct, nov); 1997 (feb, mar, abr, may, jun, jul, sep, oct, nov, dic); 1998 (suple, mar, abr, jun, jul, sep, oct, dic); 1999 (suple, mar, may, jul, sep); 2000 (suple, may, jul, sep, nov, dic); 2001 (suple, may, nov) 
<br/><br/> Donado.