(1954). American library directory. A classified list of 13 857 libraries with names of librarians, and statistical data compiled triennially (20th ed.). R. R. Bowker.
Citace podle Chicago (17th ed.)American Library Directory. A Classified List of 13 857 Libraries with Names of Librarians, and Statistical Data Compiled Triennially. 20th ed. New York: R. R. Bowker, 1954.
Citace podle MLA (9th ed.)American Library Directory. A Classified List of 13 857 Libraries with Names of Librarians, and Statistical Data Compiled Triennially. 20th ed. R. R. Bowker, 1954.
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