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Submitted on: 09 February 2003.
Revised on: 01 April 2003.
Accepted on: 29 April 2003.
___________________ENVIRONMENT AND BEHAVIOR---SAGE PUBLICATIONS INC
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Submitted on: 16 August 2006.
Revised on: 18 November 2006.
Accepted on: 18 December 2006.
___________________ENVIRONMENT AND BEHAVIOR---SAGE PUBLICATIONS INC
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