an account of experimental work which has taken place on ADAS research and development farms and on private land in conjunction with Willmot Industries Conservation Department and Tilhill Economic Forestry Williamson, D. R. creator Great Britain Forestry Commission. Great Britain Agricultural Development and Advisory Service. Willmot Industries Conservation Department. Tilhill Economic Forestry text London HMSO c1992 monographic eng fre ger v, 42 p. : ill. (some col.) ; 20 x 21 cm. by D.R. Williamson. Summaries in French and German. e-uk--- Woodlots Great Britain Tree planting Great Britain SD387.W6 W54 1992 634.9/9/0941 0117103098 (pbk.) 93160803 UOEL 000 20150625101248.0 000