Harrison, K. C. (1964). Facts at your fingertips: Everyman's guide to reference books. K. Mason.
Citazione stile Chigago Style (17a edizione)Harrison, Kenneth Cecil. Facts at Your Fingertips: Everyman's Guide to Reference Books. London: K. Mason, 1964.
Citatione MLA (9a ed.)Harrison, Kenneth Cecil. Facts at Your Fingertips: Everyman's Guide to Reference Books. K. Mason, 1964.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.