|  
             Selecting 
              Sources 
            
			Now that you 
              know the wide range of sources available to you, how do you select 
              the best one for your research? 
               
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             If 
              you need: 
           | 
           
             You 
              might try: 
           | 
        
         
           
			Background 
            information, such as the history of the railroads or statistics on 
            the number of children immunized against diseases in the United States 
             
          
           | 
           
             
              Books  
           | 
        
         
          
			Popular 
            articles about new movies or social trends 
             
          
           | 
           
              
              
              Magazines  
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			Current 
            information about a speech yesterday by the head of Ford Motor Company 
             
          
           | 
           
             
              Newspapers or 
              Web 
           | 
        
         
          | 
			Scholarly 
            articles about the Chinese economy or the human genome  | 
           
             
              Journals 
           |