Submitted on: 10 February 2006.
Revised on: 07 March 2006.
Accepted on: 19 March 2006.
___________________ECOSCIENCE---TAYLOR & FRANCIS INC
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Submitted on: 24 May 2000.
Revised on: 21 June 2000.
Accepted on: 07 July 2000.
___________________ECOSCIENCE---TAYLOR & FRANCIS INC
Submitted on: 25 December 2008.
Revised on: 15 March 2009.
Accepted on: 29 March 2009.
___________________ECOSCIENCE---TAYLOR & FRANCIS INC
Submitted on: 28 February 2003.
Revised on: 13 May 2003.
Accepted on: 30 June 2003.
___________________ECOSCIENCE---TAYLOR & FRANCIS INC