The thirteen colonies [motion picture] /
made by BBC-TV ; represented by Clive Ensley
- Milton Keynes : Open University, 1972
- 1 film reel (25 min.) : sd., col. ; 16 mm.
- Open University/The age of revolutions A202, film no. 1R .
the film relates to the relation between 13 colonies in U.S. Converted into VHS 1/2 in. and U-matic 3/4 in.