Submitted on: 15 December 2000.
Revised on: 01 January 2001.
Accepted on: 07 January 2001.
SOCIETY & NATURAL RESOURCES---TAYLOR & FRANCIS INC
Submitted on: 22 December 1998.
Revised on: 21 January 1999.
Accepted on: 30 January 1999.
SOCIETY & NATURAL RESOURCES
Submitted on: 13 September 2009.
Revised on: 25 October 2009.
Accepted on: 02 November 2009.
SOCIETY & NATURAL RESOURCES
Submitted on: 15 October 1998.
Revised on: 15 November 1998.
Accepted on: 23 November 1998.
SOCIETY & NATURAL RESOURCES---TAYLOR & FRANCIS INC
http://reply.papertrans.cn/3/283/28221/28221-35.png
http://reply.papertrans.cn/3/283/28221/28221-36.png