Initial spacing of poplars and willows grown as arable coppice /
Armstrong, A.
Johns, C.
Great Britain.Forestry Commission.Silviculture & Seeds Research Branch.
Energy Technology Support Unit (Great Britain)
[Harwell] : ETSU,
1997.
ETSU B/W2/00336/REP.
Contractor: Silviculture & Seeds Research Branch, Forestry Commission Research Agency.
Includes bibliographical references.