Reference
- Anon . 1991 . The Hillier Manual of Trees and Shrubs Newton Abbot : Sixth Edition. David and Charles .
Reference
- Kendle , A D and Bradshaw , A D. 1992 . The role of soil nitrogen in the growth of trees on derelict land . Arboric Jour. , 16 : 103 – 22 .
References
- Goodier , R. and Bunce , R GH. 1977 . “ The native pinewoods of Scotland: the current state of the resource ” . In Native Pinewoods of Scotland. Editors. RGH Bunce and JNR Jeffers. Cambridge Institute of Terrestial Ecology
- Steven , H M and Carlislie , A. 1959 . The Native Pinewoods of Scotland Edinburgh : Oliver and Boyd .