APA
Bowker annual of library and book trade information, . (1987). Bowker annual of library and book trade information. New York: R.R. Bowker Company.
Chicago
Bowker annual of library and book trade information, . 1987. Bowker annual of library and book trade information. New York: R.R. Bowker Company.
Harvard
Bowker annual of library and book trade information, . (1987). Bowker annual of library and book trade information. New York: R.R. Bowker Company.
MLA
Bowker annual of library and book trade information, . Bowker annual of library and book trade information. New York: R.R. Bowker Company. 1987.