The alleged decline of brown trout populations in Scotland and Northern Ireland /
Barnard, S.,author.
Scotland & Northern Ireland Forum for Environmental Research.
Water Research Centre (Great Britain)
Forth River Purification Board.Library,former owner.StEdNL
"Report no. SR 3404/1."
"July 1993."
"WRc plc."
Includes bibliographic references.
Ink stamp on half title page: Forth River Purification Board Library.