(2000). The Medical Letter 1988-1999: A Searchable Collection. The Medical Letter.
芝加哥风格引文The Medical Letter 1988-1999: A Searchable Collection. New Rochelle, NY: The Medical Letter, 2000.
MLA引文The Medical Letter 1988-1999: A Searchable Collection. The Medical Letter, 2000.
警告：这些引文格式不一定是100％准确.