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Commercial Fertilizers in 1941-42.
(Texas Agricultural Experiment Station, 1942)
Commercial Fertilizers in 1940-41.
(Texas Agricultural Experiment Station, 1941)
Commercial Fertilizers in 1944-45.
(Texas Agricultural Experiment Station, 1945)
Commercial Fertilizers in 1942-43.
(Texas Agricultural Experiment Station, 1943)
Commercial Fertilizers in 1943-44.
(Texas Agricultural Experiment Station, 1944)