美国国家农业图书馆

美国国家农业图书馆As the Nation's primary source for agricultural information, the National Agricultural Library (NAL) has a mission to increase the availability and utilization of agricultural information for researchers, educators, policymakers, consumers of agricultural products, and the public. The Library is one of the world's largest and most accessible agricultural research libraries and plays a vital role in supporting research, education, and applied agriculture.
http://www.nalusda.gov
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