Enlace original:
https://bibliotecadigital.infor.cl/handle/20.500.12220/7428
Mather, R.A.
,
Freer-Smith, P.H.
,
Savill, Peter S.
,
[Analysis of the changes in forest condition in Britain 1989 to 1992]
,
Analysis of the changes in forest condition in Britain 1989 to 1992