ProQuest报纸库试用

proquest公司给我们开通了以下6种报纸的访问，报纸名称如下：

ProQuest Historical Newspapers: Boston Globe (1872-1981) 

ProQuest Historical Newspapers: Hartford Courant (1764-1987) 

ProQuest Historical Newspapers: New York Tribune / Herald Tribune (1841-1962) 

ProQuest Historical Newspapers: The Guardian (1821-2003) and The Observer (1791-2003) 

ProQuest Historical Newspapers: The New York Times (1851-2009) with Index (1851-1993) 

ProQuest Historical Newspapers: The Wall Street Journal (1889-1995)