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Submitted on: 29 March 1999.
Revised on: 26 April 1999.
Accepted on: 21 June 1999.
___________________Anuario IEHS---UNIV NACL CENTRO PROVINCIA BUENOS AIRES (UNICEN), FAC CIENCIAS SOCIALES
Submitted on: 31 October 2001.
Revised on: 07 December 2001.
Accepted on: 07 January 2002.
___________________Anuario IEHS---UNIV NACL CENTRO PROVINCIA BUENOS AIRES (UNICEN), FAC CIENCIAS SOCIALES
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Submitted on: 15 January 2019.
Revised on: 16 February 2019.
Accepted on: 27 February 2019.
___________________Anuario IEHS---UNIV NACL CENTRO PROVINCIA BUENOS AIRES (UNICEN), FAC CIENCIAS SOCIALES
Submitted on: 16 June 2014.
Revised on: 07 July 2014.
Accepted on: 01 August 2014.
___________________Anuario IEHS---UNIV NACL CENTRO PROVINCIA BUENOS AIRES (UNICEN), FAC CIENCIAS SOCIALES