AGRICOLA (From the USDA)
Database encompassing all aspects of agriculture and allied disciplines -- includes animal and veterinary sciences, entomology, plant sciences, forestry, aquaculture and fisheries, farming and farming systems, agricultural economics, extension and education, food and human nutrition, and earth and environmental sciences. Sources include journal articles, books, state extension/experiment station publications, and USDA documents. Content dates from the 15th century to the present. Serves as the catalog and index to the collections of the National Agricultural Library.