"Keep it clean" : microbials workshops : 16 and 21 February and 1,7 and 21 March 2017 : Fife, Bolton, Warwick, Maidstone, Somerset.
Great Britain.Agriculture and Horticulture Development Board.
AHDB Horticulture (Great Britain)
Title from cover.
AHDB Horticulture is a part of the Agriculture and Horticulture Development Board (AHDB)"--Back cover.