TY - BOOK AU - Yeatman, C.W. TI - Tree root development of upland heaths U1 - 581.498 21st ed. PY - 1955/// CY - London PB - Her Majestys Stationery Office KW - Development KW - Forestry development KW - Forests KW - Heathlands KW - Landtypes KW - Roots KW - Trees ER -