AGRIS

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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.

فعّال (مزود البيانات قام بتقديم البيانات الوصفية السنة الماضية)

معلومات ببليوغرافية

اللغة:
English
في أجريس منذ:
1988
الناشر:
Sinauer Associates
جميع العناوين:
"The eternal external threat"@eng
مسائل أخرى:
"Conservation biology : the science of scarcity and diversity, Soule, M.E. (ed.).- Sunderland, Mass. (USA): Sinauer Associates, 1986.- ISBN 08-789-37943. p. 286-303"
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معلومات ببليوغرافية

اللغة:
English
في أجريس منذ:
1988
الناشر:
Sinauer Associates
جميع العناوين:
"The eternal external threat"@eng
مسائل أخرى:
"Conservation biology : the science of scarcity and diversity, Soule, M.E. (ed.).- Sunderland, Mass. (USA): Sinauer Associates, 1986.- ISBN 08-789-37943. p. 286-303"