Danish national Library Authority & Bertelsen, E. W. (2001). Act regarding library services: [redaktion, Ellen Warrer Bertelsen]. Biblioteksstyrelsen.
Citazione stile Chigago Style (17a edizione)Danish national Library Authority e Ellen Warrer Bertelsen. Act Regarding Library Services: [redaktion, Ellen Warrer Bertelsen]. K: Biblioteksstyrelsen, 2001.
Citatione MLA (8a ed.)Danish national Library Authority e Ellen Warrer Bertelsen. Act Regarding Library Services: [redaktion, Ellen Warrer Bertelsen]. Biblioteksstyrelsen, 2001.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.