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More by Roy Elliott Campbell
Icon image The Broad-bean Weevil
The Broad-bean Weevil
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Icon image Farmers' Bulletin: Issue 1282
Farmers' Bulletin: Issue 1282
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Icon image Farmers' Bulletin: Issue 1282
Farmers' Bulletin: Issue 1282
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Icon image Nicotine Sulphate in a Dust Carrier Against Truck-crop Insects
Nicotine Sulphate in a Dust Carrier Against Truck-crop Insects
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Icon image Nicotine Dust for Control of Truck-crop Insects
Nicotine Dust for Control of Truck-crop Insects
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Icon image The Broad-bean Weevil
The Broad-bean Weevil
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Icon image Investigations of the Tomato Fruitworm: Its Seasonal History and Methods of Control
Investigations of the Tomato Fruitworm: Its Seasonal History and Methods of Control
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Icon image Investigations of the Tomato Fruitworm: Its Seasonal History and Methods of Control
Investigations of the Tomato Fruitworm: Its Seasonal History and Methods of Control
€0
Icon image How Teachers May Use Farmers' Bulletin 1121: Factors that Make for Success in Farming in the South, Volumes 152-194
How Teachers May Use Farmers' Bulletin 1121: Factors that Make for Success in Farming in the South, Volumes 152-194
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Icon image How to Grow Alfalfa: Volumes 1276-1300
How to Grow Alfalfa: Volumes 1276-1300
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Icon image Quality and Value of Important Types of Peat Material: A Classification of Peat Based Upon Its Botanical Composition and Physical and Chemical Characteristics, Volumes 801-825
Quality and Value of Important Types of Peat Material: A Classification of Peat Based Upon Its Botanical Composition and Physical and Chemical Characteristics, Volumes 801-825
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Icon image Quality and Value of Important Types of Peat Material: A Classification of Peat Based Upon Its Botanical Composition and Physical and Chemical Characteristics, Volumes 801-825
Quality and Value of Important Types of Peat Material: A Classification of Peat Based Upon Its Botanical Composition and Physical and Chemical Characteristics, Volumes 801-825
€0
Icon image Shall I Buy a Tractor?: (for a Corn-belt Farm)
Shall I Buy a Tractor?: (for a Corn-belt Farm)
€0
Icon image Using Phenoxy Herbicides Effectively: 2,4-D, 2,4,5-T, MSPA, Silvex, 4-(2,4-DB)
Using Phenoxy Herbicides Effectively: 2,4-D, 2,4,5-T, MSPA, Silvex, 4-(2,4-DB)
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