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 Joe Walding:

"

Walding stood unsuccessfully against Bill Brown for the Palmerston North seat in the 1966 election. Following Brown's sudden death in 1967, Walding successfully contested the resulting 1967 by-election against four others: Gordon Cruden (National Party), John O'Brien (Social Credit Party), Goldingham (Progress) and P. J. Wedderspoon (Democratic Labour).[1]