“NATION, TERRY”. Bản gốc lưu trữ ngày 10 tháng 12 năm 2006. Truy cập ngày 19 tháng 5 năm 2008.
oed.com
Generally, TARDIS (Time and Relative Dimensions in Space) is written in all upper case letters—this convention was popularised by the Targetnovelisations of the 1970s. However, the use of Tardis is equally correct and consistent with current British press style, in which acronyms which form a pronounceable word are spelled with only the first letter capitalised (for example, Bafta), while acronyms requiring each letter to be read out (also known as "initialisms") are capitalised in their entirety (for example, BBC). Many examples of the form Tardis are found in media and, occasionally, licensed publications (in the 2005 series episode "World War Three", the caller ID of the TARDIS is displayed on Rose Tyler's mobile phone as "Tardis calling"—this capitalisation of only the initial letter being the default setting for Nokia mobile phones). The OED has the word "Tardis" capitalised as such with a first appearance from the Times in 1969. (“Tardis, n.”. Oxford English Dictionary. tháng 6 năm 2002. His best poems are like Doctor Who's Tardis, the solid streetcorner policebox, which actually contains a sidereal spaceship.)
