American Library Association. Board on Personnel Administration. (1948). Descriptive list of professional and nonprofessional duties in libraries: Preliminary draft.
Chicago (17e ed.) BronvermeldingAmerican Library Association. Board on Personnel Administration. Descriptive List of Professional and Nonprofessional Duties in Libraries: Preliminary Draft. Chicago, 1948.
MLA (9e ed.) BronvermeldingAmerican Library Association. Board on Personnel Administration. Descriptive List of Professional and Nonprofessional Duties in Libraries: Preliminary Draft. 1948.
Let op: Deze citaties zijn niet altijd 100% accuraat.