The Cambridge Union Society publishes numerous resources for debaters.
Past WUDC and EUDC teams have produced excellent debating guides. While the Cambridge IV Adjudication Team set the exact guidelines for the competition, they will be mostly (if not entirely) consistent with this material produced by the WUDC Berlin team.
WUDC Berlin: 1 - Debating at the WUDC Berlin 2013
WUDC Berlin: 2 - Adjudication at the WUDC Berlin 2013
WUDC Berlin: 3 - The British Parliamentary Format (For Novices)
More Resources - WUDC Berlin Website