R.R. Bowker Company & Council of National Library and Information Associations (U.S.). (1989). The Bowker annual: Library and book trade almanac. R.R. Bowker.
芝加哥风格引文R.R. Bowker Company 与 Council of National Library and Information Associations (U.S.). The Bowker Annual: Library and Book Trade Almanac. New York: R.R. Bowker, 1989.
MLA引文R.R. Bowker Company 与 Council of National Library and Information Associations (U.S.). The Bowker Annual: Library and Book Trade Almanac. R.R. Bowker, 1989.
警告：这些引文格式不一定是100％准确.