American Library Association. Board on Personnel Administration. (1948). Descriptive list of professional and nonprofessional duties in libraries: Preliminary draft.
Citace podle Chicago (17th ed.)American Library Association. Board on Personnel Administration. Descriptive List of Professional and Nonprofessional Duties in Libraries: Preliminary Draft. Chicago, 1948.
Citace podle MLA (9th ed.)American Library Association. Board on Personnel Administration. Descriptive List of Professional and Nonprofessional Duties in Libraries: Preliminary Draft. 1948.
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