Cita APA (7a ed.)

(1923). American library directory: A classified list of libraries in the United States and Canada, with personnel and statistical data. R.R. Bowker.

Cita Chicago Style (17a ed.)

American Library Directory: A Classified List of Libraries in the United States and Canada, with Personnel and Statistical Data. New York: R.R. Bowker, 1923.

Cita MLA (9a ed.)

American Library Directory: A Classified List of Libraries in the United States and Canada, with Personnel and Statistical Data. R.R. Bowker, 1923.