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Protection from the locust borer
Citrus fruit insects in Mediterranean countries
Motor transportation for rural districts
The utilization of waste tomato seeds and skins
Lonchocarpus, derris, and pyrethrum cultivation and sources of supply
The Plum Island Animal Disease Laboratory
Lessons on corn for rural elementary schools
Tests of methods of protecting woods against termites or white ants : a progress report
Medicago falcata, a yellow-flowered alfalfa
Fumigation of citrus plants with hydrocyanic acid : conditions influencing injury