American Library Association. Coordinating Committee on Revision of Public Library Standards. (1956). Costs of public library service in 1956: A supplement. American Library Association.
Citace podle Chicago (17th ed.)American Library Association. Coordinating Committee on Revision of Public Library Standards. Costs of Public Library Service in 1956: A Supplement. Chicago: American Library Association, 1956.
Citace podle MLA (9th ed.)American Library Association. Coordinating Committee on Revision of Public Library Standards. Costs of Public Library Service in 1956: A Supplement. American Library Association, 1956.
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