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The International Survey of Herbicide Resistant Weeds is a collaborative effort between weed scientists in over 80 countries. Our main aim is to maintain scientific accuracy in the reporting of herbi...
The International Survey of Herbicide Resistant Weeds
The International Survey of Herbicide Resistant Weeds Herbicide Resistant Weeds
2014/5/22
The International Survey of Herbicide Resistant Weeds is a collaborative effort between weed scientists in over 80 countries. Our main aim is to maintain scientific accuracy in the reporting of herbi...
美国国家地质调查局水资源利用信息项目（The U.S. Geological Survey's National Water-Use Information Program）
美国国家地质调查局水资源利用信息项目 The U.S. Geological Survey's National Water-Use Information Program USGS
2013/9/9
The U.S. Geological Survey's National Water-Use Information Program is responsible for compiling and disseminating the nation's water-use data. The USGS works in cooperation with local, State, and Fed...
The material in BEA's monthly journal, the Survey of Current Business is accessible through the links shown below. The material is in Adobe Acrobat (PDF) format; to view it, you will need free Adobe s...
British Antarctic Survey (BAS) is a component of the Natural Environment Research Council (NERC). Based in Cambridge, United Kingdom, it has, for over 60 years, undertaken the majority of Britain's sc...
The European Social Survey (the ESS) is an academically-driven social survey designed to chart and explain the interaction between Europe's changing institutions and the attitudes, beliefs and behavio...
The International Social Survey Program (ISSP)（图）
The International Social Survey Program ISSP Social Survey 社会调查
2007/12/24
The International Social Survey Program (ISSP) is a continuing, annual program of cross-national collaboration. It brings together pre-existing, social science projects and coordinates research goals,...