(1977). National library and information services: A handbook for planners. Butterworths.
Citazione stile Chigago Style (17a edizione)National Library and Information Services: A Handbook for Planners. London: Butterworths, 1977.
Citatione MLA (9a ed.)National Library and Information Services: A Handbook for Planners. Butterworths, 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.