Παραπομπή APA

(1974). The Bowker annual of library and book trade information. R.R.Bowker.

Παραπομπή Chicago Style

The Bowker Annual of Library and Book Trade Information. New York: R.R.Bowker, 1974.

Παραπομπή MLA

The Bowker Annual of Library and Book Trade Information. R.R.Bowker, 1974.