Agricultural research index. London: Hodgson, 1970.
Agricultural research index. London: Hodgson, 1970.
(1970) Agricultural research index, London: Hodgson.
(1970). Agricultural research index. A guide including dairy farming, fisheries, food, forestry, horticulture and veterinary science Vol. 2. London: Hodgson,.
Agricultural research index: A guide including dairy farming, fisheries, food, forestry, horticulture and veterinary science Vol. 2. London: Hodgson; 1970.