"Fisher, W.B." . . "Dusting apparatus." . . "Insecticides." . . . . . "Spray chemicals and application equipment ; a text book and handbook of the insecticide-fungicide industry and of application equipment"@en . "Spray chemicals and application equipment; a text book and hand book of the insecticidefungicide industry and of application equipment" . . . . . . "Spray chemicals and application equipment a text book and hand book of the insecticide-fungicide industry and of application equipment"@en . "Spray chemicals and application equipment a text book and hand book of the insecticide-fungicide industry and of application equipment" . . . . . . . "Spray chemicals and application equipment : a text book & hand book of the insecticide fungicide industry and of application equipment" . . "Spray chemicals and application equipment : a text book and hand book of the insecticide-fungicide industry and of application equipment"@en . . . "Spray chemicals and application equipment : a text book and hand book of the insecticide-fungicide industry and of application equipment" . . . . . . . "Spray chemicals and application equipment : A text book and hand book of the insecticide-fungicide industry and of application equipment" . . . . . . "Spray chemicals and application equipment"@en . . . . . . . . . . "Spray chemicals and application equipment; a text book and hand book of the insecticide-fungicide industry and of application equipment"@en . . . . . . "Spray chemicals and application equipment : a text book and hand book of the insecticide fungicide industry and of application equipment"@en .