Principia Mathematica

From Tardis Wiki, the free Doctor Who reference
Revision as of 21:47, 16 December 2014 by Shambala108 (talk | contribs)

Principia Mathematica was a book on mathematics. Nyssa looked over a copy of Principia Mathematica while waiting for the Fifth Doctor to return to the TARDIS. (TV: Four to Doomsday)


Principia Mathematica