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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

Journal Article

期刊文章

Some observations on overwintering of the drone fly, Eristalis tenax (L.) (Syrphidae)  [1972]

Kendall, D.A.; Stradling, D.J.;

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来自期刊
Entomologist London

书目信息

语言:
English
类型:
Journal Article
自何时收录于AGRIS:
2013
起始页:
229
结束页:
230
所有题名:
"Some observations on overwintering of the drone fly, Eristalis tenax (L.) (Syrphidae)"@eng
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书目信息

语言:
English
类型:
Journal Article
自何时收录于AGRIS:
2013
起始页:
229
结束页:
230
所有题名:
"Some observations on overwintering of the drone fly, Eristalis tenax (L.) (Syrphidae)"@eng