Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page The Helicopter Museum (Weston):

"

In 1974, Ap Rees purchased a Bristol Belvedere and formed a volunteer group to restore it. In December 1976, an ex Royal Navy Westland Whirlwind HAS Mk.7 was acquired and added to the collection.[2] In 1977 and 1978, more aircraft were added, including an ex Royal Air Force Bristol Sycamore HC Mk.14 and several rare prototypes: the Fairey Ultra-Light tip-jet driven helicopter, the Thruxton Gadfly HDW.1 two-seat autogyro and the Campbell Cougar autogyro.