Environmental education and interpretation : a training seminar for European park rangers, wardens and interpreters : a European seminar held at Losiehill Hall, the Peak National Park Centre, Castleton, Derbyshire, U.K., organised in conjunction with the Association of Countryside Rangers with the support of the Federation of Nature and National Parks of Europe, the Countryside Commission and the Foreign and Commonwealth Office, London : 23rd-28th September 1990.
Hawkins, Pete.
Great Britain.Peak Park Joint Planning Board.
Castleton : Peak National Park Centre,
[1990?]
"1990 report."