-
1Cyhoeddwyd 1989“...Economics Section, Ministry of Forestry,...”
Llyfr -
2gan Chang, P. C.“...Environmental Design Section, Ministry of Works and Development,...”
Cyhoeddwyd 1980
Llyfr -
3Cyhoeddwyd 1974“...Auckland Section N. Z. Institute of Foresters,...”
Llyfr -
4gan MacGregor, J. J.“...Economics Section, Dept. of Forestry, Commonwealth Forestry Institute,...”
Cyhoeddwyd 1974
Llyfr -
5gan Bohlin, Elisabet“...Swedish University of Agricultural Sciences, Dept. of Forest Ecology, Section of Vegetation Ecology,...”
Cyhoeddwyd 1993
Llyfr -
6Cyhoeddwyd 1985“...Land Management Section, N.Z. Soil Bureau, Dept. of Scientific and Industrial Research,...”
Llyfr -
7gan Thuresson, Tomas“...Swedish University of Agricultural Sciences, Dept. of Biometry and Forest Management, Section of Forest Mensuration and Management,...”
Cyhoeddwyd 1995
Llyfr