American Library Association. Coordinating Committee on Revision of Public Library Standards. (1956). Costs of public library service in 1956: A supplement. American Library Association.
Citazione stile Chigago Style (17a edizione)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.
Citatione MLA (9a 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.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.